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Kumada T, Toyoda H, Ogawa S, Gotoh T, Suzuki Y, Sugimoto K, Yoshida Y, Kuroda H, Kamada Y, Sumida Y, Ito T, Akita T, Tanaka J. Severe hepatic steatosis promotes increased liver stiffness in the early stages of metabolic dysfunction-associated steatotic liver disease. Liver Int 2024. [PMID: 38558221 DOI: 10.1111/liv.15920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/18/2024] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND & AIMS The predictors of progression from steatosis to more advanced stages of metabolic dysfunction-associated steatotic liver disease (MASLD) remain unclear. We evaluated the association between the quantity of hepatic steatosis and longitudinal changes in liver stiffness measurements (LSMs) using magnetic resonance elastography (MRE) in patients with MASLD. METHODS We retrospectively analysed patients with MASLD who underwent at least two serial MRE and magnetic resonance imaging-based proton density fat fraction (MRI-PDFF) examinations at least 1 year apart. Fine-Gray competitive proportional hazard regression was used to identify LSM progression and regression factors. RESULTS A total of 471 patients were enrolled. Factors linked to LSM progression were steatosis grade 3 (MRI-PDFF ≥17.1%, adjusted hazard ratio [aHR] 2.597; 95% confidence interval [CI] 1.483-4.547) and albumin-bilirubin grade 2 or 3 (aHR 2.790; 95% CI 1.284-6.091), while the only factor linked to LSM regression was % decrease rate of MRI-PDFF ≥5% (aHR 2.781; 95% CI 1.584-4.883). Steatosis grade 3 correlated with a higher incidence rate of LSM progression than steatosis grade 1 (MRI-PDFF <11.3%) in patients with LSM stage 0 (<2.5 kilopascal [kPa]), and a % annual decrease rate of MRI-PDFF ≥5% correlated with a higher incidence rate of LSM regression than that of MRI-PDFF >-5% and <5% in patients with LSM stage 1 or 2-4 (≥2.5 kPa). CONCLUSIONS Severe hepatic steatosis was linked to significant LSM progression in patients with MASLD and low LSM (<2.5 kPa).
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Affiliation(s)
- Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Gifu, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Tatsuya Gotoh
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Yoshida
- Department of Gastroenterology and Hepatology, Suita Municipal Hospital, Osaka, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Iwate, Japan
| | - Yoshihiro Kamada
- Department of Advanced Metabolic Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Yoshio Sumida
- Department of Healthcare Management, International University of Health and Welfare, Tokyo, Japan
| | - Takanori Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
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Kumada T, Toyoda H, Ogawa S, Gotoh T, Suzuki Y, Imajo K, Sugimoto K, Kakegawa T, Kuroda H, Yasui Y, Tamaki N, Kurosaki M, Izumi N, Akita T, Tanaka J, Nakajima A. Advanced fibrosis leads to overestimation of steatosis with quantitative ultrasound in individuals without hepatic steatosis. Ultrasonography 2024; 43:121-131. [PMID: 38316132 PMCID: PMC10915114 DOI: 10.14366/usg.23194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 02/07/2024] Open
Abstract
PURPOSE The effect of hepatic fibrosis stage on quantitative ultrasound based on the attenuation coefficient (AC) for liver lipid quantification is controversial. The objective of this study was to determine how the degree of fibrosis assessed by magnetic resonance (MR) elastography affects AC based on the ultrasound-guided attenuation parameter according to the grade of hepatic steatosis, using magnetic resonance imaging (MRI)-derived proton density fat fraction (MRIderived PDFF) as the reference standard. METHODS Between February 2020 and April 2021, 982 patients with chronic liver disease who underwent AC and MRI-derived PDFF measurement as well as MR elastography were enrolled. Multiple regression was used to investigate whether AC was affected by the degree of liver stiffness. RESULTS AC increased as liver stiffness progressed in 344 patients without hepatic steatosis (P=0.009). In multivariable analysis, AC was positively correlated with skin-capsule distance (P<0.001), MR elastography value (P=0.037), and MRI-derived PDFF (P<0.001) in patients without hepatic steatosis. In 52 of 982 patients (5%), the correlation between AC and MRIderived PDFF fell outside the 95% confidence interval for the regression line slope. Patients with MRI-derived PDFF lower than their AC (n=36) had higher fibrosis-4 scores, albumin-bilirubin scores, and MR elastography values than patients with MRI-derived PDFF greater than their AC (n=16; P=0.018, P=0.001, and P=0.011, respectively). CONCLUSION AC is affected by liver fibrosis (MR elastography value ≥6.7 kPa) only in patients without hepatic steatosis (MRI-derived PDFF <5.2%). These values should be interpreted with caution in patients with advanced liver fibrosis.
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Affiliation(s)
- Takashi Kumada
- Department of Nursing, Faculty of Nursing, Gifu Kyoritsu University, Ogaki, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Sadanobu Ogawa
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Tatsuya Gotoh
- Department of Imaging Diagnosis, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Kento Imajo
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
- Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Morioka, Japan
| | - Yutaka Yasui
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Nobuharu Tamaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino-shi, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
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Sakakura H, Hayashi Y, Sugimoto K, Matsubara A. Relationship between age-related changes in mandibular third molar roots and the possibility of mental nerve paresthesia after tooth extraction. Int J Oral Maxillofac Surg 2024:S0901-5027(23)00948-7. [PMID: 38199951 DOI: 10.1016/j.ijom.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 12/11/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Mental nerve paresthesia is a serious postoperative complication of mandibular third molar extraction. It appears that no study has examined the relationship between the surface morphology of the mandibular third molar roots and the possibility of mental nerve paresthesia following tooth extraction. Therefore, the root morphology of the mandibular third molars was examined according to age using dental cone beam computed tomography (CBCT), and the possibility of mental nerve paresthesia following tooth extraction was evaluated. The study included 1216 patients who had undergone mandibular third molar extractions. The root morphology of 1534 teeth in 791 patients who had CBCT performed before surgery was studied. Factors evaluated were age, complete or incomplete formation of the mandibular third molar roots, periodontal ligament atrophy of the mandibular third molar roots, hypercementosis, and mandibular canal deformation. Mandibular third molar root formation was completed between the ages of 19 and 30 years. Complete formation of the mandibular third molar roots (P = 0.002) and deformation of the mandibular canal (P < 0.001) were identified as risk factors for mental nerve paresthesia. These findings suggest that the risk of mental nerve paresthesia could be reduced if the extraction of third molars is performed prior to complete root formation.
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Affiliation(s)
- H Sakakura
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya-shi, Aichi, Japan.
| | - Y Hayashi
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya-shi, Aichi, Japan
| | - K Sugimoto
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya-shi, Aichi, Japan
| | - A Matsubara
- Department of Oral and Maxillofacial Surgery, Japanese Red Cross Aichi Medical Center Nagoya Daini Hospital, Nagoya-shi, Aichi, Japan
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Kamiyama N, Sugimoto K, Nakahara R, Kakegawa T, Itoi T. Deep learning approach for discrimination of liver lesions using nine time-phase images of contrast-enhanced ultrasound. J Med Ultrason (2001) 2024; 51:83-93. [PMID: 38051461 DOI: 10.1007/s10396-023-01390-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 10/07/2023] [Indexed: 12/07/2023]
Abstract
PURPOSE Contrast-enhanced ultrasound (CEUS) shows different enhancement patterns depending on the time after administration of the contrast agent. The aim of this study was to evaluate the diagnostic performance of liver nodule characterization using our proposed deep learning model with input of nine CEUS images. METHODS A total of 181 liver lesions (48 benign, 78 hepatocellular carcinoma (HCC), and 55 non-HCC malignant) were included in this prospective study. CEUS were performed using the contrast agent Sonazoid, and in addition to B-mode images before injection, image clips were stored every minute up to 10 min. A deep learning model was developed by arranging three ResNet50 transfer learning models in parallel. This proposed model allowed inputting up to nine datasets of different phases of CEUS and performing image augmentation of nine images synchronously. Using the results, the correct prediction rate, sensitivity, and specificity between "benign" and "malignant" cases were analyzed for each combination of the time phase. These accuracy values were also compared with the washout score judged by a human. RESULTS The proposed model showed performance superior to the referential standard model when the dataset from B-mode to the 10-min images were used (sensitivity: 93.2%, specificity: 65.3%, average correct answer rate: 60.1%). It also maintained 90.2% sensitivity and 61.2% specificity even when the dataset was limited to 2 min after injection, and this accuracy was equivalent to or better than human scoring by experts. CONCLUSION Our proposed model has the potential to identify tumor types earlier than the Kupffer phase, but at the same time, machine learning confirmed that Kupffer-phase Sonazoid images contain essential information for the classification of liver nodules.
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Affiliation(s)
- Naohisa Kamiyama
- Ultrasound General Imaging, GE HealthCare Japan, 127 Asahigaoka-4, Hino, Tokyo, 191-0065, Japan.
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, 160-0023, Japan
| | - Ryuichi Nakahara
- Department of Orthopedic Surgery, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, 160-0023, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, 160-0023, Japan
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Kurebayashi Y, Tsujikawa H, Sugimoto K, Yunaiyama D, Araki Y, Saito K, Takahashi H, Kakegawa T, Wada T, Tomita Y, Abe M, Yoshimasu Y, Takeuchi H, Hirata T, Sakamaki K, Kakimi K, Nagao T, Itoi T, Sakamoto M. Tumor steatosis and glutamine synthetase expression in patients with advanced hepatocellular carcinoma receiving atezolizumab plus bevacizumab therapy. Hepatol Res 2023; 53:1008-1020. [PMID: 37300323 DOI: 10.1111/hepr.13933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/11/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023]
Abstract
AIM The anti-programmed death-ligand 1 antibody atezolizumab and vascular endothelial growth factor-neutralizing antibody bevacizumab in combination (Atezo + Bev) have become the first-line therapy in advanced hepatocellular carcinoma (HCC). Distinct types of tumor immune microenvironment (TIME) and their associations with specific molecular subclasses and driver gene mutations have been identified in HCC; however, these insights are mainly based on surgically resected early-stage tumors. The current study aimed to reveal the biology and TIME of advanced HCC and their significance in predicting clinical outcomes of Atezo + Bev therapy. METHODS Thirty-three patients with advanced HCC who were scheduled for treatment with Atezo + Bev therapy were included in this study. Pretreatment tumor biopsy, pre- and posttreatment diffusion-weighted magnetic resonance imaging (MRI) with nine b values (0-1500 s/mm2 ), and other clinicopathologic factors were analyzed. RESULTS Compared with resectable HCC, advanced HCC was characterized by higher proliferative activity, a higher frequency of Wnt/β-catenin-activated HCC, and lower lymphocytic infiltration. Prognostically, two metabolism-related factors, histopathologically determined tumor steatosis and/or glutamine synthetase (GS) expression, and MRI-determined tumor steatosis, were the most significant prognostic indicators for progression-free survival (PFS) and overall survival after Atezo + Bev therapy. Furthermore, changes in the pre- and posttreatment true diffusion coefficients on MRI, which might reflect changes in TIME after treatment, were significantly associated with better PFS. CONCLUSIONS The biology and TIME of HCC were strikingly different in advanced HCC compared with those of surgically resected HCC. Two metabolism-related factors, pathologically determined tumor steatosis and/or GS expression, and MRI-determined tumor steatosis, were found to be the most significant prognostic indicators for Atezo + Bev therapy in advanced HCC.
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Affiliation(s)
- Yutaka Kurebayashi
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
| | - Hanako Tsujikawa
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
- Department of Diagnostic Pathology, Keio University Hospital, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | | | - Yoichi Araki
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takuya Wada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yusuke Tomita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Taiki Hirata
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kentaro Sakamaki
- Center for Data Science, Yokohama City University, Yokohama, Japan
| | - Kazuhiro Kakimi
- Department of Immuno-therapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomical Pathology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Michiie Sakamoto
- Department of Pathology, Keio University School of Medicine, Tokyo, Japan
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Kuroda H, Oguri T, Kamiyama N, Toyoda H, Yasuda S, Imajo K, Suzuki Y, Sugimoto K, Akita T, Tanaka J, Yasui Y, Kurosaki M, Izumi N, Nakajima A, Fujiwara Y, Abe T, Kakisaka K, Matsumoto T, Kumada T. Multivariable Quantitative US Parameters for Assessing Hepatic Steatosis. Radiology 2023; 309:e230341. [PMID: 37787670 DOI: 10.1148/radiol.230341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Background Because of the global increase in the incidence of nonalcoholic fatty liver disease, the development of noninvasive, widely available, and highly accurate methods for assessing hepatic steatosis is necessary. Purpose To evaluate the performance of models with different combinations of quantitative US parameters for their ability to predict at least 5% steatosis in patients with chronic liver disease (CLD) as defined using MRI proton density fat fraction (PDFF). Materials and Methods Patients with CLD were enrolled in this prospective multicenter study between February 2020 and April 2021. Integrated backscatter coefficient (IBSC), signal-to-noise ratio (SNR), and US-guided attenuation parameter (UGAP) were measured in all participants. Participant MRI PDFF value was used to define at least 5% steatosis. Four models based on different combinations of US parameters were created: model 1 (UGAP alone), model 2 (UGAP with IBSC), model 3 (UGAP with SNR), and model 4 (UGAP with IBSC and SNR). Diagnostic performance of all models was assessed using area under the receiver operating characteristic curve (AUC). The model was internally validated using 1000 bootstrap samples. Results A total of 582 participants were included in this study (median age, 64 years; IQR, 52-72 years; 274 female participants). There were 364 participants in the steatosis group and 218 in the nonsteatosis group. The AUC values for steatosis diagnosis in models 1-4 were 0.92, 0.93, 0.95, and 0.96, respectively. The C-indexes of models adjusted by the bootstrap method were 0.92, 0.93, 0.95, and 0.96, respectively. Compared with other models, models 3 and 4 demonstrated improved discrimination of at least 5% steatosis (P < .01). Conclusion A model built using the quantitative US parameters UGAP, IBSC, and SNR could accurately discriminate at least 5% steatosis in patients with CLD. © RSNA, 2023 Supplemental material is available for this article. See also the editorial by Han in this issue.
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Affiliation(s)
- Hidekatsu Kuroda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takuma Oguri
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Naohisa Kamiyama
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Hidenori Toyoda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Satoshi Yasuda
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Kento Imajo
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yasuaki Suzuki
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Katsutoshi Sugimoto
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Tomoyuki Akita
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Junko Tanaka
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yutaka Yasui
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Masayuki Kurosaki
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Namiki Izumi
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Atsushi Nakajima
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Yudai Fujiwara
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Tamami Abe
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Keisuke Kakisaka
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takayuki Matsumoto
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
| | - Takashi Kumada
- From the Division of Gastroenterology and Hepatology, Department of Internal Medicine, Iwate Medical University School of Medicine, Nishitokuta 2-1-1, Yahaba-cho, Shiwa-gun, Iwate 028-3694, Japan (H.K., Y.F., T. Abe, K.K., T.M.); Ultrasound General Imaging, GE HealthCare, Hino, Japan (T.O., N.K.); Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan (H.T., S.Y.); Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan (K.I.); Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan (Y.S.); Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K.S.); Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan (T. Akita, J.T.); Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan (Y.Y., M.K., N.I.); Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan (A.N.); and Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan (T.K.)
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Sugimoto K, He Y, Iwata N, Yeh IL, Tangtartharakul K, Arefiev A, Sentoku Y. Positron Generation and Acceleration in a Self-Organized Photon Collider Enabled by an Ultraintense Laser Pulse. Phys Rev Lett 2023; 131:065102. [PMID: 37625047 DOI: 10.1103/physrevlett.131.065102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 06/29/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023]
Abstract
We discovered a simple regime where a near-critical plasma irradiated by a laser of experimentally available intensity can self-organize to produce positrons and accelerate them to ultrarelativistic energies. The laser pulse piles up electrons at its leading edge, producing a strong longitudinal plasma electric field. The field creates a moving gamma-ray collider that generates positrons via the linear Breit-Wheeler process-annihilation of two gamma rays into an electron-positron pair. At the same time, the plasma field, rather than the laser, serves as an accelerator for the positrons. The discovery of positron acceleration was enabled by a first-of-its-kind kinetic simulation that generates pairs via photon-photon collisions. Using available laser intensities of 10^{22} W/cm^{2}, the discovered regime can generate a GeV positron beam with a divergence angle of around 10° and a total charge of 0.1 pC. The result paves the way to experimental observation of the linear Breit-Wheeler process and to applications requiring positron beams.
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Affiliation(s)
- K Sugimoto
- Department of Physics, Graduate School of Science, Osaka University, 1-1 Machikanecho, Toyonaka, Osaka 560-0043, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Y He
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA
| | - N Iwata
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - I-L Yeh
- Department of Physics, University of California at San Diego, La Jolla, California 92093, USA
| | - K Tangtartharakul
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA
| | - A Arefiev
- Department of Mechanical and Aerospace Engineering, University of California at San Diego, La Jolla, California 92093, USA
| | - Y Sentoku
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Sato A, Saito K, Abe K, Sugimoto K, Nagao T, Sukeda A, Yunaiyama D. Indium chloride bone marrow scintigraphy for hepatic myelolipoma: A case report. World J Clin Cases 2023; 11:4377-4383. [PMID: 37449238 PMCID: PMC10337005 DOI: 10.12998/wjcc.v11.i18.4377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/02/2023] [Accepted: 05/22/2023] [Indexed: 06/26/2023] Open
Abstract
BACKGROUND As hepatic myelolipoma is rarely encountered, its radiological diagnosis using ultrasonography (US), computed tomography (CT), and magnetic resonance imaging (MRI) is challenging. Hepatic myelolipoma is similar to fat-contained hepatic lesions seen in hepatocellular carcinoma and angiomyolipoma. Therefore, further development of techniques to diagnose hepatic myelolipoma is warranted.
CASE SUMMARY A 44-year-old obese man was found to have a hepatic lesion during his medical checkup. The lesion was 50 mm × 57 mm in size and was detected in segment 8 (S8) of the liver by US. The patient was diagnosed with hepatic lesion 20 years ago, but it was left unresolved. The patient had no symptoms, liver dysfunction, hepatitis virus antibody, or tumor marker elevation. Plain CT showed a well-defined lesion in S8 of the liver. The central and peripheral areas of the lesion primarily exhibited fat density and hypodensity, respectively. MRI revealed a capsule-like structure. Biopsy was performed to address the probability of hepatocellular carcinoma. The lesion was pathologically confirmed as a myelolipoma. Bone marrow scintigraphy performed using 111InCl3 revealed accumulation of the radiopharmaceutical in the soft tissue component, except in the fat-dominant part of the tumor, as well as in the surrounding liver parenchyma due to the presence of reticuloendothelial cells in the liver.
CONCLUSION This is the first report on the diagnosis of hepatic myelolipoma using 111InCl3 scintigraphy. The effectiveness of bone marrow scintigraphy for diagnosing hepatic myelolipoma might be limited. As radiopharmaceuticals accumulate in both hematopoietic and reticuloendothelial cells, the accumulation of radiopharmaceuticals in the lesion is obscure.
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Affiliation(s)
- Akio Sato
- Department of Radiology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Koichiro Abe
- Department of Radiology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Aoi Sukeda
- Department of Anatomic Pathology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
| | - Daisuke Yunaiyama
- Department of Radiology, Tokyo Medical University Hospital, Shinjuku-ku 160-0023, Tokyo, Japan
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Sugimoto K, Kamiyama N, Kakegawa T, Takahashi H, Wada T, Abe M, Yoshimasu Y, Takeuchi H, Itoi T. Modified CEUS LI-RADS using Sonazoid for the diagnosis of hepatocellular carcinoma. Ultrasonography 2023:usg.23065. [PMID: 37340572 DOI: 10.14366/usg.23065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 05/31/2023] [Indexed: 06/22/2023] Open
Abstract
This review outlines several modified versions of the contrast-enhanced ultrasonography Liver Imaging Reporting and Data System (CEUS LI-RADS) that utilize Sonazoid. Furthermore, it discusses the advantages and challenges of diagnosing hepatocellular carcinoma using these guidelines, as well as the authors' expectations and opinions regarding the next CEUS LI-RADS version. It is possible that Sonazoid could be incorporated into the next version of CEUS LI-RADS.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | | | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takuya Wada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Sugimoto K, Lee DH, Itoi T. Response to "Limitations of a Multiparametric US Score for NASH Prediction". Radiology 2023; 306:e221498. [PMID: 36255310 DOI: 10.1148/radiol.221498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Dong Ho Lee
- Department of Radiology, Seoul National University, Seoul, Korea
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
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Takeuchi H, Sugimoto K, Kakegawa T, Tomita Y, Takahashi H, Wada T, Abe M, Yoshimasu Y, Matsubayashi J, Nagao T, Itoi T. The usefulness of a newly developed full-core biopsy needle in liver biopsy. Hepatol Res 2023; 53:247-257. [PMID: 36355636 DOI: 10.1111/hepr.13856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/06/2022] [Accepted: 11/03/2022] [Indexed: 11/12/2022]
Abstract
AIM To evaluate the usefulness and safety of a newly developed full-core biopsy needle. METHODS We selected 149 patients who underwent percutaneous liver biopsy at our institution from February 2019 to April 2021. We excluded 35 patients with hepatic fibrosis stage F3 or higher, which made it histopathologically difficult to measure the number of complete portal triads. The patients were divided into two groups as follows: 62 cases with the 18-G conventional automated needle (TruCore needle: T needle), and 52 cases with the 18-G full-core needle (CorVocet needle: C needle). We measured the number of complete portal triads in the liver tissue specimens, and the sum of the length and width of the collected tissues. Moreover, we compared the number of session counts, fragmentations, and complications. RESULTS The sum of the length and the width was 12.8 mm (11.2-14.3) and 15.9 mm (13.1-17.3; p < 0.001), and 0.68 mm (0.63-0.74) and 0.82 mm (0.78-0.90; p < 0.001) for the T needle and C needle, respectively. The number of complete portal triads and fragmentation was six (3-8) and 10 (6-13; p < 0.001), and one (1-10) and one (1-3; p < 0.001), for the T needle and C needle, respectively. There was one session count (1-2) in both groups; however, there were significantly higher cases of two sessions with the T needle than that with the C needle (p = 0.018). There were no serious adverse events. CONCLUSIONS Compared with the conventional needles, the newly developed full-core needles enabled the acquisition of a larger amount of tissue sample in liver biopsy.
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Affiliation(s)
- Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yusuke Tomita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takuya Wada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | | | - Toshitaka Nagao
- Department of Pathology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Kojima H, Sofuni A, Sugimoto K, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Yamamoto K, Hirakawa N, Itoi T. Efficacy of shear wave elastography for the diagnosis of chronic pancreatitis. J Hepatobiliary Pancreat Sci 2023; 30:351-359. [PMID: 35918909 DOI: 10.1002/jhbp.1224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 07/01/2022] [Accepted: 07/27/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND/PURPOSE Shear wave elastography (SWE) is a clinical method used to evaluate liver hardness. In this study, we assessed its applicability in assessing the pancreas and its potential for diagnosing chronic pancreatitis. METHODS We performed SWE on 59 patients who underwent abdominal ultrasound, and measured the computed tomography (CT) values of the pancreas. Patients were classified as having a normal pancreas (NP), early chronic pancreatitis (ECP), or chronic pancreatitis (CP). SW elasticity (SWe), SW dispersion (SWd), and CT values between groups were analyzed. RESULTS SWe significantly differed between the CP and NP/ECP groups (NP vs CP; P = 0.001, ECP vs CP; P = 0.026,), while SWd showed a significant difference only between the NP and CP group (NP vs CP; P = 0.001). The CT values were significantly different between the CP and NP/ECP groups (NP vs CP; P = 0.0006, ECP vs CP; P = 0.0027). CONCLUSION Pancreatic SWE and CT values were helpful in the diagnosis of chronic pancreatitis. SWd may reveal status changes in ECP.
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Affiliation(s)
- Hiroyuki Kojima
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Atsushi Sofuni
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | | | | | - Kentaro Ishii
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Reina Tanaka
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Ryosuke Tonozuka
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Kenjiro Yamamoto
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Noriyuki Hirakawa
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
| | - Takao Itoi
- Tokyo Medical University, Gastroenterology and Hepatology, Tokyo, Japan
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13
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Sugimoto K, Yano H, Itoi T. US Dispersion Slope in Patients with Varying Liver Pathology. Radiology 2023; 307:e222251. [PMID: 36853180 DOI: 10.1148/radiol.222251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Hirohisa Yano
- Department of Pathology, Kurume University School of Medicine, Kurume, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
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14
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Yamada S, Sagayama H, Yamazaki M, Aoki H, Sugimoto K, Arima T. Physical properties and phase diagram of single crystal REBaMn2O6 (RE = Sm, Eu, Gd, Tb, Dy, and Y). J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Imajo K, Toyoda H, Yasuda S, Suzuki Y, Sugimoto K, Kuroda H, Akita T, Tanaka J, Yasui Y, Tamaki N, Kurosaki M, Izumi N, Nakajima A, Kumada T. Utility of Ultrasound-Guided Attenuation Parameter for Grading Steatosis With Reference to MRI-PDFF in a Large Cohort. Clin Gastroenterol Hepatol 2022; 20:2533-2541.e7. [PMID: 34768008 DOI: 10.1016/j.cgh.2021.11.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/19/2021] [Accepted: 11/02/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Ultrasound-guided attenuation parameter (UGAP) is recently developed for noninvasive evaluation of steatosis. However, reports on its usefulness in clinical practice are limited. This prospective multicenter study analyzed the diagnostic accuracy of grading steatosis with reference to magnetic resonance imaging-based proton density fat fraction (MRI-PDFF), a noninvasive method with high accuracy, in a large cohort. METHODS Altogether, 1010 patients with chronic liver disease who underwent MRI-PDFF and UGAP were recruited and prospectively enrolled from 6 Japanese liver centers. Linearity was evaluated using intraclass correlation coefficients between MRI-PDFF and UGAP values. Bias, defined as the mean difference between MRI-PDFF and UGAP values, was assessed by Bland-Altman analysis. UGAP cutoffs for pairwise MRI-PDFF-based steatosis grade were determined using area under the receiver-operating characteristic curve (AUROC) analyses. RESULTS UGAP values were shown to be normally distributed. However, because PDFF values were not normally distributed, they were log-transformed (MRI-logPDFF). UGAP values significantly correlated with MRI-logPDFF (intraclass correlation coefficient = 0.768). Additionally, Bland-Altman analysis showed good agreement between MRI-logPDFF and UGAP with a mean bias of 0.0002% and a narrow range of agreement (95% confidence interval [CI], -0.015 to 0.015). The AUROCs for distinguishing steatosis grade ≥1 (MRI-PDFF ≥5.2%), ≥2 (MRI-PDFF ≥11.3%), and 3 (MRI-PDFF ≥17.1%) were 0.910 (95% CI, 0.891-0.928), 0.912 (95% CI, 0.894-0.929), and 0.894 (95% CI, 0.873-0.916), respectively. CONCLUSIONS UGAP has excellent diagnostic accuracy for grading steatosis with reference to MRI-PDFF. Additionally, UGAP has good linearity and negligible bias, suggesting that UGAP has excellent technical performance characteristics that can be widely used in clinical trials and patient care. (UMIN Clinical Trials Registry, Number: UMIN000041196).
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Affiliation(s)
- Kento Imajo
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan; Department of Gastroenterology, Shin-Yurigaoka General Hospital, Kawasaki, Japan.
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Satoshi Yasuda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Yahaba, Japan
| | - Tomoyuki Akita
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Junko Tanaka
- Department of Epidemiology, Infectious Disease Control, and Prevention, Hiroshima University Institute of Biomedical and Health Sciences, Hiroshima, Japan
| | - Yutaka Yasui
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Nobuharu Tamaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Masayuki Kurosaki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Namiki Izumi
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Japan
| | - Atsushi Nakajima
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Takashi Kumada
- Department of Nursing, Gifu Kyoritsu University, Ogaki, Japan
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16
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Kurata C, Saito K, Shirota N, Araki Y, Sugimoto K, Tajima Y, Yunaiyama D. The feasibility of superparamagnetic iron oxide–enhanced magnetic resonance imaging for assessing liver lesions in patients with contraindications for iodine CT contrast media or gadolinium-based MR contrast media: a retrospective case-control study. Quant Imaging Med Surg 2022; 12:4612-4621. [PMID: 36060597 PMCID: PMC9403591 DOI: 10.21037/qims-22-74] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 06/15/2022] [Indexed: 11/13/2022]
Abstract
Background The detection and characterization of liver lesions are problematic in patients with bronchial asthma, renal dysfunction, or a history of allergy to gadolinium-based magnetic resonance contrast media or iodine-computed tomography contrast media because these contrast media cannot be used. Hence, the information on the lesion vascularity cannot be obtained. Therefore, this retrospective case-control study evaluated the feasibility of superparamagnetic iron oxide (SPIO) in patients with one or more of these contraindications who underwent SPIO-enhanced magnetic resonance imaging for the assessment of liver lesions. Methods Twenty-six patients with a total of 48 lesions were analyzed. SPIO was used in the case of all patients because each patient had at least one reason not to use iodine contrast or gadolinium-based contrast media. Additionally, all patients were subjected to the perfusion study. A total volume of 1.3 mL of SPIO was injected via the cubital vein at a rate of 3 mL per second, followed by 40 mL saline at the same speed. The scanning of the perfusion study was started 4 s after the beginning of superparamagnetic iron oxide injection and scanning took 50 s. Two radiologists independently evaluated whether the lesion was malignant or benign. Receiver operating characteristic analysis (ROC) was performed to determine the additional benefit of the perfusion study. Results There were no adverse effects associated with SPIO. The area under the curve (AUC) value without perfusion study for observers 1 and 2 were 0.473 (P=0.794, 95% CI: 0.275–0.672) and 0.602 (P=0.305, 95% CI: 0.407–0.798), respectively, whereas the Az values with perfusion study for observers 1 and 2 were 0.782 (P=0.011, 95% CI: 0.565–0.998) and 0.784 (P=0.004, 95% CI: 0.591–0.977), respectively. Az value became significantly better when the perfusion study has added (P=0.001 and 0.012 by observers 1 and 2). Conclusions SPIO can be used safely in patients with bronchial asthma, renal dysfunction, or a history of contrast media allergy. Furthermore, the diagnostic accuracy of SPIO was acceptable.
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Affiliation(s)
- Chishio Kurata
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | | | - Yoichi Araki
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Tajima
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
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17
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Sugimoto K, Saito K, Shirota N, Kamiyama N, Sakamaki K, Takahashi H, Wada T, Kakegawa T, Tomita Y, Abe M, Yoshimasu Y, Takeuchi H, Itoi T. Comparison of modified CEUS LI-RADS with sonazoid and CT/MRI LI-RADS for diagnosis of hepatocellular carcinoma. Hepatol Res 2022; 52:730-738. [PMID: 35570681 DOI: 10.1111/hepr.13793] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/01/2022] [Accepted: 05/06/2022] [Indexed: 02/08/2023]
Abstract
AIM To compare the diagnostic performance based on the modified CEUS Liver Imaging Reporting and Data System (LI-RADS), which includes Kupffer-phase findings as a major imaging feature, with that of CT and MRI (CT/MRI) LI-RADS for liver nodules in patients at high risk of HCC. METHODS A total of 120 patients with 120 nodules were included in this retrospective study. The median size of the lesions was 20.0 mm (interquartile range, 14.0-30.8 mm). Of these lesions, 90.0% (108 of 120) were confirmed as HCCs, 6.7% (8 of 120) were intrahepatic cholangiocarcinomas, 1.7% (2 of 120) were metastases, and 1.7% (2 of 120) were dysplastic nodules. All nodules were diagnosed histopathologically. Each nodule was categorized according to the modified CEUS LI-RADS and CT/MRI LI-RADS version 2018. The diagnostic performance and inter-modality agreement of each criterion was compared. RESULTS The inter-modality agreement for the modified CEUS LI-RADS and CT/MRI LI-RADS was slight agreement (kappa = 0.139, p = 0.015). The diagnostic accuracies of HCCs for the modified CEUS LR-5 and CT/MRI LR-5 were 70.0% (95% confidence interval [CI]: 61.0%, 78.0%) versus 70.8% (95% CI: 61.8%, 78.8%) (p = 0.876), respectively. The diagnostic accuracies of non-HCC malignancies for the modified CEUS LR-M and CT/MRI LR-M were 84.2% (95% CI: 76.4%, 90.2%) versus 96.7% (95% CI: 91.7%, 99.1%) (p = 0.002), respectively. CONCLUSIONS The diagnostic performance for HCCs on the modified CEUS LR-5 and CT/MRI LR-5 are comparable. In contrast, CT/MRI LR-M has better diagnostic performance for non-HCC malignancy than that of the modified CEUS LR-M.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, Tokyo, Japan
| | | | | | - Kentaro Sakamaki
- Center for Data Science, Yokohama City University, Yokohama, Japan
| | - Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takuya Wada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yusuke Tomita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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18
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Honda H, Yamamoto K, Sofuni A, Sugimoto K, Furuichi Y, Tsuchiya T, Ishii K, Tanaka R, Tonozuka R, Mukai S, Nagai K, Asai Y, Matsunami Y, Kurosawa T, Kojima H, Homma T, Minami H, Nakatsubo R, Hirakawa N, Matsubayashi J, Itoi T. Two Cases of Hemorrhagic Ampullary Lesions Successfully Treated by Endoscopic Papillectomy. Intern Med 2022; 61:1843-1848. [PMID: 34866100 PMCID: PMC9259823 DOI: 10.2169/internalmedicine.8294-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
We herein report two cases of hemorrhagic ampullary lesions in which endoscopic papillotomy was performed to control bleeding and resulted in successful treatment. Both patients were pathologically diagnosed with an underlying pathology characterized by inflammatory cell infiltration and capillary proliferation. They also had disposing factors for bleeding, such as antithrombotic therapy and idiopathic thrombocytopenic purpura. Endoscopic treatment was selected because the risk of surgical resection was high due to the patients' hemorrhagic condition. Both patients were successfully treated without any serious adverse events and had an uneventful postoperative course with no relapse of bleeding.
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Affiliation(s)
- Hidehito Honda
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Atsushi Sofuni
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
- Department of Gastroenterology and Hepatology, Niizashiki Central General Hospital, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kentaro Ishii
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Reina Tanaka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Kazumasa Nagai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yasutsugu Asai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yukitoshi Matsunami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Takashi Kurosawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Toshihiro Homma
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Hirohito Minami
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Ryosuke Nakatsubo
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Noriyuki Hirakawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Jun Matsubayashi
- Department of Anatomic Pathology, Tokyo Medical University, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
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19
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Ueshima E, Sofue K, Takaki H, Hirata Y, Kodama H, Hamada M, Matsushiro K, Sasaki K, Gentsu T, Okada T, Yamaguchi M, Yamakado K, Sugimoto K, Murakami T. Abstract No. 359 Embolization induced tumor-associated macrophage polarization in tumor immune microenvironment can be reprogrammed by lenvatinib in a rat hepatoma model. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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20
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Kakegawa T, Sugimoto K, Kuroda H, Suzuki Y, Imajo K, Toyoda H. Diagnostic Accuracy of Two-Dimensional Shear Wave Elastography for Liver Fibrosis: A Multicenter Prospective Study. Clin Gastroenterol Hepatol 2022; 20:e1478-e1482. [PMID: 34425275 DOI: 10.1016/j.cgh.2021.08.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/11/2021] [Accepted: 08/13/2021] [Indexed: 02/07/2023]
Abstract
Chronic liver disease (CLD) leads to the development of hepatocellular carcinoma, which is one of the leading causes of cancer-related deaths globally.1 Liver fibrosis is the most important prognostic factor for hepatocellular carcinoma development and prognosis in CLD, and accurate staging of liver fibrosis is pivotal in clinical practice.2 Although liver biopsy is the gold standard for evaluating liver fibrosis, liver biopsy has several limitations including invasiveness, sampling error, and intraobserver and interobserver reproducibility.3 To resolve these problems, several noninvasive methods for evaluating liver fibrosis have been developed using serum fibrosis markers, ultrasound-based modalities, and magnetic resonance imaging-based modalities.4.
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Affiliation(s)
- Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital, Musashino, Tokyo, Japan; Department of Gastroenterology and Hepatology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Hidekatsu Kuroda
- Division of Hepatology, Department of Internal Medicine, Iwate Medical University, Shiwa, Iwate, Japan
| | - Yasuaki Suzuki
- Department of Gastroenterology, Nayoro City General Hospital, Nayoro, Hokkaido, Japan
| | - Kento Imajo
- Department of Gastroenterology, Yokohama City University Graduate School of Medicine, Kanazawa, Kanagawa, Japan; Department of Gastroenterology, Shin-yurigaoka General Hospital, Kawasaki, Kanagawa, Japan
| | - Hidenori Toyoda
- Department of Gastroenterology and Hepatology, Ogaki Municipal Hospital, Ogaki, Gifu, Japan
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21
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Takahashi H, Sugimoto K, Kamiyama N, Sakamaki K, Kakegawa T, Wada T, Tomita Y, Abe M, Yoshimasu Y, Takeuchi H, Itoi T. Noninvasive Diagnosis of Hepatocellular Carcinoma on Sonazoid-Enhanced US: Value of the Kupffer Phase. Diagnostics (Basel) 2022; 12:diagnostics12010141. [PMID: 35054309 PMCID: PMC8774743 DOI: 10.3390/diagnostics12010141] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/06/2022] [Accepted: 01/06/2022] [Indexed: 12/24/2022] Open
Abstract
The aim of this study was to compare the diagnostic performance of Contrast-Enhanced US Liver Imaging Reporting and Data System (CEUS LI-RADS) version 2017, which includes portal- and late-phase washout as a major imaging feature, with that of modified CEUS LI-RADS, which includes Kupffer-phase findings as a major imaging feature. Participants at risk of hepatocellular carcinoma (HCC) with treatment-naïve hepatic lesions (≥1 cm) were recruited and underwent Sonazoid-enhanced US. Arterial phase hyperenhancement (APHE), washout time, and echogenicity in the Kupffer phase were evaluated using both criteria. The diagnostic performance of both criteria was analyzed using the McNemar test. The evaluation was performed on 102 participants with 102 lesions (HCCs (n = 52), non-HCC malignancies (n = 36), and benign (n = 14)). Among 52 HCCs, non-rim APHE was observed in 92.3% (48 of 52). By 5 min, 73.1% (38 of 52) of HCCs showed mild washout, while by 10 min or in the Kupffer phase, 90.4% (47 of 52) of HCCs showed hypoenhancement. The sensitivity (67.3%; 35 of 52; 95% CI: 52.9%, 79.7%) of modified CEUS LI-RADS criteria was higher than that of CEUS LI-RADS criteria (51.9%; 27 of 52; 95% CI: 37.6%, 66.0%) (p = 0.0047). In conclusion, non-rim APHE with hypoenhancement in the Kupffer phase on Sonazoid-enhanced US is a feasible criterion for diagnosing HCC.
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Affiliation(s)
- Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
- Correspondence:
| | - Naohisa Kamiyama
- Ultrasound General Imaging, GE Healthcare, Hino-shi 191-0065, Japan;
| | - Kentaro Sakamaki
- Center for Data Science, Yokohama City University, Yokohama 236-0027, Japan;
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Takuya Wada
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Yusuke Tomita
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo 160-0023, Japan; (H.T.); (T.K.); (T.W.); (Y.T.); (M.A.); (Y.Y.); (H.T.); (T.I.)
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22
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Yamamoto K, Itoi T, Tsuchiya T, Tonozuka R, Mukai S, Kojima H, Sugimoto K. Intraductal radiofrequency ablation therapy for eradication of intraductal residual lesions after endoscopic papillectomy for ampullary adenoma. J Hepatobiliary Pancreat Sci 2022; 29:e112-e115. [PMID: 34995406 DOI: 10.1002/jhbp.1108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 11/26/2021] [Accepted: 12/16/2021] [Indexed: 11/09/2022]
Affiliation(s)
- Kenjiro Yamamoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ryosuke Tonozuka
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Shuntaro Mukai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroyuki Kojima
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Yamada M, Yoshimasu Y, Kakegawa T, Takahashi H, Tomita Y, Takeuchi H, Sugimoto K, Furuichi Y, Itoi T. [A case of endoscopic injection sclerotherapy for duodenal varices]. Nihon Shokakibyo Gakkai Zasshi 2021; 118:1160-1166. [PMID: 34897146 DOI: 10.11405/nisshoshi.118.1160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A 67-year-old man with a history of esophageal and gastric varices that were treated endoscopically was treated for Budd-Chiari syndrome and immunoglobulin G4-related sclerosing cholangitis in our facility. Varices in the second portion of the duodenum were revealed in follow-up upper endoscopy. The draining vein formed a venous plexus that was detected on computed tomography. Treatment with interventional radiology was difficult;therefore, endoscopic injection sclerotherapy (EIS) was performed instead. No recurrence has been observed to date. Thus, in this case, EIS for duodenal varices was effective.
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Affiliation(s)
- Mayuka Yamada
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Tatsuya Kakegawa
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Hiroshi Takahashi
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Yusuke Tomita
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | | | | | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University
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Sugimoto K. Development of US- and CT/MRI-based quantification of liver steatosis. J Med Ultrason (2001) 2021; 48:463. [PMID: 34755226 DOI: 10.1007/s10396-021-01137-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 09/02/2021] [Indexed: 11/26/2022]
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Tago T, Katsumata K, Udou R, Kasahara K, Mazaki J, Kuwabara H, Enomoto M, Ishizaki T, Nagakawa Y, Sugimoto K, Itoi T, Tsuchida A. Significance of Radiofrequency Ablation for Unresectable Colorectal Cancer With Liver Metastases. Anticancer Res 2021; 41:5539-5547. [PMID: 34732424 DOI: 10.21873/anticanres.15367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM We aimed to investigate the prognosis of patients who received radiofrequency ablation (RFA) for liver metastases of unresectable colorectal cancer (CRC). PATIENTS AND METHODS We retrospectively compared 147 patients treated for CRC liver metastases, who underwent RFA (n=26), resection (n=92), and chemotherapy (n=29) between 2001 and 2021. RESULTS RFA and chemotherapy were performed for unresectable or non-operable cases, and resection was performed for suitable cases. The median overall survival (OS) was 44.9, 49.5, and 11.6 months for patients who underwent RFA, resection, and chemotherapy, respectively. RFA led to a significantly shorter OS compared to resection (p=0.027) but to a longer OS compared to chemotherapy (p=0.003). The 5-year survival rates were 34.6% and 42.4% for patients who underwent RFA and resection, respectively (p=0.508). CONCLUSION RFA has the potential to achieve long-term survival or radical cure, even for unresectable or non-operable cases of CRC with liver metastasis.
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Affiliation(s)
- Tomoya Tago
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenji Katsumata
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan;
| | - Ryutaro Udou
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Kenta Kasahara
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Junichi Mazaki
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Hiroshi Kuwabara
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Masanobu Enomoto
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Tetsuo Ishizaki
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Akihiko Tsuchida
- Department of Gastrointestinal and Pediatric Surgery, Tokyo Medical University, Tokyo, Japan
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Ferraioli G, Berzigotti A, Barr RG, Choi BI, Cui XW, Dong Y, Gilja OH, Lee JY, Lee DH, Moriyasu F, Piscaglia F, Sugimoto K, Wong GLH, Wong VWS, Dietrich CF. Quantification of Liver Fat Content with Ultrasound: A WFUMB Position Paper. Ultrasound Med Biol 2021; 47:2803-2820. [PMID: 34284932 DOI: 10.1016/j.ultrasmedbio.2021.06.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 05/19/2021] [Accepted: 06/07/2021] [Indexed: 06/13/2023]
Abstract
New ultrasound methods that can be used to quantitatively assess liver fat content have recently been developed. These quantitative ultrasound (QUS) methods are based on the analysis of radiofrequency echoes detected by the transducer, allowing calculation of parameters for quantifying the fat in the liver. In this position paper, after a section dedicated to the importance of quantifying liver steatosis in patients with non-alcoholic fatty liver disease and another section dedicated to the assessment of liver fat with magnetic resonance, the current clinical studies performed using QUS are summarized. These new methods include spectral-based techniques and techniques based on envelope statistics. The spectral-based techniques that have been used in clinical studies are those estimating the attenuation coefficient and those estimating the backscatter coefficient. Clinical studies that have used tools based on the envelope statistics of the backscattered ultrasound are those performed by using the acoustic structure quantification or other parameters derived from it, such as the normalized local variance, and that performed by estimating the speed of sound. Experts' opinions are reported.
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Affiliation(s)
- Giovanna Ferraioli
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, Medical School University of Pavia, Pavia, Italy
| | - Annalisa Berzigotti
- Hepatology Dept., University Clinic for Visceral Surgery and Medicine, Inselspital, University Hospital of Bern, University of Bern, Switzerland
| | - Richard G Barr
- Department of Radiology, Northeastern Ohio Medical University, Rootstown, Ohio, USA
| | - Byung I Choi
- Department of Radiology, Chung-Ang University Hospital, Seoul, Korea
| | - Xin Wu Cui
- Department of Medical Ultrasound, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Dong
- Department of Ultrasound, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Odd Helge Gilja
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, and Department of Clinical Medicine, University of Bergen, Norway
| | - Jae Young Lee
- Departments of Health and Science and Technology and Medical Device Management and Research, Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University, Seoul, Korea
| | - Dong Ho Lee
- Department of Radiology, Seoul National University Hospital, Seoul, Republic of Korea
| | - Fuminori Moriyasu
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan
| | - Fabio Piscaglia
- Unit of Internal Medicine, Hepatobiliary and Immunoallergic Diseases, Department of Medical and Surgical Sciences, University of Bologna S. Orsola-Malpighi Hospital, Bologna, Italy
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Grace Lai-Hung Wong
- Medical Data Analytic Centre and Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong, China
| | - Vincent Wai-Sun Wong
- Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Christoph F Dietrich
- Department Allgemeine Innere Medizin (DAIM), Kliniken Hirslanden Beau Site, Salem und Permancence, Bern, Switzerland.
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Sugimoto K, Lee DH, Lee JY, Yu SJ, Moriyasu F, Sakamaki K, Oshiro H, Takahashi H, Kakegawa T, Tomita Y, Abe M, Yoshimasu Y, Takeuchi H, Choi BI, Itoi T. Multiparametric US for Identifying Patients with High-Risk NASH: A Derivation and Validation Study. Radiology 2021; 301:625-634. [PMID: 34519576 DOI: 10.1148/radiol.2021210046] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is common in the general population but identifying patients with high-risk nonalcoholic steatohepatitis (NASH) who are candidates for pharmacologic therapy remains a challenge. Purpose To develop a score to identify patients with high-risk NASH, defined as NASH with an NAFLD activity score (NAS) of 4 or greater and clinically significant fibrosis (stage 2 [F2] or higher). Materials and Methods This was a cross-sectional secondary analysis of data prospectively collected between April 2017 and March 2019 for a group of patients with NAFLD in Japan (Japan NAFLD, the derivation data set) with contemporaneous two-dimensional shear-wave elastography and biopsy-proven NAFLD (age range, 20-89 years). Three US markers (liver stiffness [LS, measured in kilopascals], attenuation coefficient [AC, measured in decibels per centimeter per megahertz], and dispersion slope [DS, measured in meters per second per kilohertz]) were determined, together with aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels and the AST-to-ALT ratio. The best-fit multivariate logistic regression model for identifying patients with high-risk NASH was determined. Diagnostic performance was assessed by using the area under the receiver operating characteristic curve (AUC). The findings were validated in an independent data set (Korea NAFLD; age range, 20-78 years). Results The Japan NAFLD data set included 111 patients (mean age, 53 years ± 18 [standard deviation]; 57 men), 84 (76%) with NASH. The Korea NAFLD data set included 102 patients (mean age, 48 years ± 18; 43 men), 55 (36%) with NASH. The most predictive model (LAD NASH score) combined LS, AC, and DS. Performance was satisfactory in both the derivation sample (AUC, 0.86; 95% CI: 0.79, 0.93) and the validation sample (AUC, 0.88; 95% CI: 0.80, 0.95). The LAD NASH score showed a positive predictive value of 86.5% and a negative predictive value of 87.5% for high-risk NASH in the derivation sample. Conclusion A score combining three US markers may be useful for noninvasive identification of patients with high-risk nonalcoholic steatohepatitis for inclusion in clinical trials and pharmacologic therapy. © RSNA, 2021 Online supplemental material is available for this article. See also the editorial by Lockhart in this issue.
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Affiliation(s)
- Katsutoshi Sugimoto
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Dong Ho Lee
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Jae Young Lee
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Su Jong Yu
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Fuminori Moriyasu
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Kentaro Sakamaki
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Hisashi Oshiro
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Hiroshi Takahashi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Tatsuya Kakegawa
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Yusuke Tomita
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Masakazu Abe
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Yu Yoshimasu
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Hirohito Takeuchi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Byung Ihn Choi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
| | - Takao Itoi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan (K. Sugimoto, H. Takahashi, T.K., Y.T., M.A., Y.Y., H. Takeuchi, T.I.); Departments of Radiology (D.H.L., J.Y.L.) and Internal Medicine, Division of Gastroenterology and Hepatology (S.J.Y.), Seoul National University, Seoul, Korea; Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Department of Radiology, Chung-Ang University Hospital, Seoul, Korea (B.I.C.)
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Furuichi Y, Sugimoto K, Oshiro H, Abe M, Takeuchi H, Yoshimasu Y, Itoi T. Elucidation of spleen elasticity and viscosity in a carbon tetrachloride rat model of liver cirrhosis using a new ultrasound elastography. J Med Ultrason (2001) 2021; 48:431-437. [PMID: 34185192 DOI: 10.1007/s10396-021-01110-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/03/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE Measurement of spleen stiffness (SS) using ultrasound (US) elastography is useful for predicting portal hypertension. However, the mechanism leading to increased SS remains unclear. We jointly developed a new US elastography system (Aplio i-series, Canon Medical Systems) that can easily measure organ viscosity (dispersion slope: DS). We analyzed the cause of increased SS by calculating the shear wave speed (SWs, which reflects fibrosis) and DS of the spleen in carbon tetrachloride (CCL4) rat liver cirrhosis models. METHODS A total of 13 Sprague-Dawley rats were randomly divided into four groups (C group: 3 rats as control, 2D group: 3 rats injected with CCL4 twice in 1 week, 4D group: 4 rats injected 4 times in 1 week, 6W group: 3 rats injected twice a week for 6 weeks). The SWs and the DS of each group were calculated, and histopathological analysis was performed. RESULTS The spleen SWs of the 6W group was significantly higher than that of the C group (p = 0.044). The spleen DS did not change after CCL4. The liver SWs of the 4D and 6W groups was significantly higher than that of the C group (p = 0.012 and 0.007, respectively) with fibrosis change on histopathology, and the DS of the 4D group was significantly higher than that of the C group (p = 0.033). Splenic fibrosis was confirmed in the 6W group, but inflammation and necrosis were not seen. CONCLUSION SS increased due to fibrosis and can be predicted based on SWs and DS values.
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Affiliation(s)
- Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan. .,Department of Gastroenterology, Niiza Shiki Central General Hospital, Saitama, Japan.
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hisashi Oshiro
- Department of Pathology, Jichi Medical University, Tochigi, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yuu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
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Fujii Y, Sugimoto K, Omichi M, Kanai K, Orito K. A pilot study investigating the effect of pimobendan on the cardiac rhythm and selected echocardiographic parameters of healthy cats. J Vet Cardiol 2021; 35:74-83. [PMID: 33887666 DOI: 10.1016/j.jvc.2021.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 03/02/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION The effects of pimobendan on the heart rhythm in cats are unknown. The purpose of this pilot study was to evaluate the effect of pimobendan on the cardiac rhythm and selected echocardiographic parameters of cats. ANIMALS, MATERIALS, AND METHODS Six clinically healthy cats received each of four medication protocols for 15 days, with a washout period of at least one month between each protocol. The protocols were, pimobendan 0.5 mg/kg twice daily (high dosage group), pimobendan 0.25 mg/kg twice daily (standard dosage group), pimobendan 0.125 mg/kg twice daily (low dosage group), and Biofermin R, one tablet twice daily (placebo group). Twenty-four-hour ambulatory electrocardiogram recordings, blood pressure measurements, and echocardiographic examinations were performed after two weeks of each medication protocol. Electrocardiographic, echocardiographic, and blood pressure parameters were compared between the four groups. RESULTS The total number of escape/idioventricular/idiojunctional complexes in the high dosage group was significantly higher compared with the placebo, low dosage, and standard dosage groups (p < 0.001). The blood pressure; total number of heart beats per day; and mean, minimum, and maximum heart rates were not significantly different between the groups. The longitudinal strain rate and calculated cardiac output were significantly increased in the high and standard dosage groups. CONCLUSIONS The administration of pimobendan, especially at high doses, was associated with increased numbers of escape/idioventricular/idiojunctional complexes in some cats and echocardiographic parameters. Further studies are warranted to investigate both the mechanism underlying the observed changes and what, if any, clinical implications these changes might have in cats with heart disease.
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Affiliation(s)
- Y Fujii
- Laboratory of Small Animal Surgery, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan.
| | - K Sugimoto
- Laboratory of Small Animal Surgery, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - M Omichi
- Laboratory of Small Animal Surgery, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - K Kanai
- Laboratory of Small Animal Surgery, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
| | - K Orito
- Laboratory of Physiology II, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara-shi, Kanagawa, Japan
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Takeuchi H, Furuichi Y, Yoshimasu Y, Kasai Y, Abe M, Sugimoto K, Itoi T. The Thrombopoietin Receptor Agonist Lusutrombopag Is Effective for Patients with Chronic Liver Disease and Impaired Renal Function. J NIPPON MED SCH 2021; 87:325-333. [PMID: 32238734 DOI: 10.1272/jnms.jnms.2020_87-603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND The thrombopoietin (TPO) receptor agonist lusutrombopag was developed to treat thrombocytopenia in chronic liver disease (CLD). However, its effectiveness remains unclear. The purpose of this study was to assess the efficacy of lusutrombopag and identify predictors associated with increase in platelet count. METHODS Eighty CLD patients with thrombocytopenia were enrolled. The primary endpoint was a satisfactory increase in platelets (greater than 1.0 × 104/μL from baseline) in the absence of platelet transfusion. The secondary endpoints were response rate (an increase of greater than 1.0 × 104/μL from baseline), independent predictors of increase in platelets, and the superiority of lusutrombopag over platelet transfusion. RESULTS The primary endpoint was achieved in 93.8% (75 of 80) patients. The response rate was 96.2% (77 of 80). Renal function parameters (blood urea nitrogen, creatinine, eGFR) were significantly negatively associated with platelet count (p = 0.033, 0.049, and 0.0014, respectively) and were identified as independent predictors by multiple regression analysis (p = 0.049, 0.0023, and 0.0016, respectively). The median increase in platelet count was significantly higher after lusutrombopag than after platelet transfusion (41,000 vs. 12,000/μL, p = 0.015). CONCLUSION Lusutrombopag was more effective than platelet transfusion for CLD patients, and renal function independently predicted increase in platelet count. Renal function parameters were significantly associated with platelet count.
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Affiliation(s)
- Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University.,Department of Gastroenterology and Hepatology, Niizashiki Central General Hospital
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Yoshitaka Kasai
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University
| | | | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University
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Ikenaga S, Yunaiyama D, Saguchi T, Otaka J, Yamada T, Ito H, Sugimoto K, Itoi T, Saito K. A case of a patient who underwent transcatheter arterial embolization for unruptured splenic aneurysm during pregnancy. Radiol Case Rep 2020; 16:78-83. [PMID: 33193933 PMCID: PMC7644823 DOI: 10.1016/j.radcr.2020.10.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/26/2020] [Accepted: 10/26/2020] [Indexed: 11/24/2022] Open
Abstract
Here, we report the case of a 30-year-old female patient who underwent coil embolization for unruptured splenic artery aneurysm without any complication at 26 weeks of pregnancy with reduction in fetal radiation exposure. The patient did not suffer from rupture of splenic artery aneurysm during or after procedure. Pregnancy is a risk factor of splenic artery aneurysm rupture with a high mortality rate. Transcatheter arterial embolization at 26 weeks of pregnancy might be a better treatment alternative for a pregnant patient with splenic artery aneurysm with respect to the endurance of fetal radiation exposure to prevent aneurysm rupture.
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Affiliation(s)
- Shoichi Ikenaga
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Daisuke Yunaiyama
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Toru Saguchi
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Jun Otaka
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Takafumi Yamada
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
| | - Hiroe Ito
- Department of Obstetrics and Gynecology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Shinjuku-ku, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, Address: 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023 Japan
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Sugimoto K, Nakazato K, Oikawa M, Kobayashi A, Yamaki T, Kunii H, Yoshihisa A, Ishida T, Takeishi Y. Relationship between effects of riociguat and levels of methemoglobin in patients with chronic thromboembolic pulmonary hypertension. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Soluble guanyl cyclase (sGC) is a receptor for nitric oxide (NO) and plays an important role in vascular tonus. sGC stimulant is a therapeutic agent for pulmonary hypertension and an advantage of sGC stimulant over phosphodiesterase (PDE)-5 inhibitors is that sGC stimulant exerts its effect even when NO production is reduced. NO derived from vascular endothelial cells is immediately absorbed by hemoglobin (Hb), which leads to the production of methemoglobin (Met-Hb) when oxidized. Previous report has shown that the therapeutic effect of PDE-5 inhibitors was associated with levels of Met-Hb.
Purpose
In this study, we examined the relationship between the effect of riociguat and levels of Met-Hb in patients with chronic thromboembolic pulmonary hypertension (CTEPH).
Methods
The study population comprised 18 patients with CTEPH. Mean pulmonary artery pressure (mPAP) and pulmonary vascular resistance (PVR) were assessed before and after administration of riociguat, and changes in mPAP and PVR were defined as ΔmPAP and ΔPVR, respectively. Since the level of Met-Hb was obtained as the percentage of Hb (FMet-Hb), the amount of Met-Hb was calculated by following formula:
Met-Hb (mg/dL) = Hb (g/dL) × FMet-Hb (%) × 10.
Results
The amount of Met-Hb value before administration of riociguat was significantly correlated with the degree of improvement in mPAP and PVR after administration of riocigat (R=−0.502, P<0.05 mPAP; R=−0.481, P<0.05 PVR, respectively) as shown in figures.
Conclusion
Our findings suggest that the level of Met-Hb before treatment may predict the therapeutic effect of sGC stimulants in patients with CTEPH.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- K Sugimoto
- Fukushima Medical University, Fukushima, Japan
| | - K Nakazato
- Fukushima Medical University, Fukushima, Japan
| | - M Oikawa
- Fukushima Medical University, Fukushima, Japan
| | - A Kobayashi
- Fukushima Medical University, Fukushima, Japan
| | - T Yamaki
- Fukushima Medical University, Fukushima, Japan
| | - H Kunii
- Fukushima Medical University, Fukushima, Japan
| | - A Yoshihisa
- Fukushima Medical University, Fukushima, Japan
| | - T Ishida
- Fukushima Medical University, Fukushima, Japan
| | - Y Takeishi
- Fukushima Medical University, Fukushima, Japan
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Sugimoto K, Kakegawa T, Takahashi H, Tomita Y, Abe M, Yoshimasu Y, Takeuchi H, Kasai Y, Itoi T. Usefulness of Modified CEUS LI-RADS for the Diagnosis of Hepatocellular Carcinoma Using Sonazoid. Diagnostics (Basel) 2020; 10:diagnostics10100828. [PMID: 33076435 PMCID: PMC7602639 DOI: 10.3390/diagnostics10100828] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 02/07/2023] Open
Abstract
The Contrast-Enhanced Ultrasound Liver Imaging Reporting and Data System (CEUS LI-RADS) was introduced for classifying suspected hepatocellular carcinoma (HCC). However, it cannot be applied to Sonazoid. We assessed the diagnostic usefulness of a modified CEUS LI-RADS for HCC and non-HCC malignancies based on sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). Patients with chronic liver disease at risk for HCC were evaluated retrospectively. Nodules ≥1 cm with arterial phase hyperenhancement, no early washout (within 60 s), and contrast defects in the Kupffer phase were classified as LR-5. Nodules showing early washout, contrast defects in the Kupffer phase, and/or rim enhancement were classified as LR-M. A total of 104 nodules in 104 patients (median age: 70.0 years; interquartile range: 54.5-78.0 years; 74 men) were evaluated. The 48 (46.2%) LR-5 lesions included 45 HCCs, 2 high-flow hemangiomas, and 1 adrenal rest tumor. The PPV of LR-5 for HCC was 93.8% (95% confidence interval (CI): 82.8-98.7%). The 22 (21.2%) LR-M lesions included 16 non-HCC malignancies and 6 HCCs. The PPV of LR-M for non-HCC malignancies, including six intrahepatic cholangiocarcinomas, was 100% (95% CI: 69.8-100%). In conclusion, in the modified CEUS LI-RADS for Sonazoid, LR-5 and LR-M are good predictors of HCC and non-HCC malignancies, respectively.
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Sugimoto K, Moriyasu F, Oshiro H, Takeuchi H, Abe M, Yoshimasu Y, Kasai Y, Sakamaki K, Hara T, Itoi T. The Role of Multiparametric US of the Liver for the Evaluation of Nonalcoholic Steatohepatitis. Radiology 2020; 296:532-540. [PMID: 32573385 DOI: 10.1148/radiol.2020192665] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background Nonalcoholic steatohepatitis (NASH) is diagnosed with histopathologic testing, but noninvasive surrogate markers are desirable for screening patients who are at high risk of NASH. Purpose To investigate the diagnostic performance of dispersion slope, attenuation coefficient, and shear-wave speed measurements obtained using two-dimensional (2D) shear-wave elastography (SWE) in assessing inflammation, steatosis, and fibrosis and in the noninvasive diagnosis of NASH in patients suspected of having nonalcoholic fatty liver disease (NAFLD). Materials and Methods This prospective study collected data from 120 consecutive adults who underwent liver biopsy for suspected NAFLD and were enrolled between April 2017 and March 2019. Three US parameters (dispersion slope [(m/sec)/kHz], attenuation coefficient [dB/cm/MHz], and shear-wave speed [in meters per second]) were measured using a 2D SWE system immediately before biopsy. The biopsy specimens were scored by one expert pathologist according to the Nonalcoholic Steatohepatitis Clinical Research Network criteria (119 participants underwent a histologic examination). Diagnostic performance was assessed using the area under the receiver operating characteristic curve (AUC) for the categories of inflammation, steatosis, and fibrosis. Results One hundred eleven adults (mean age, 53 years ± 18 [standard deviation]; 57 men) underwent a US examination. Dispersion slope enabled the identification of lobular inflammation, with an AUC of 0.95 (95% confidence interval [CI]: 0.91, 0.10) for an inflammation grade greater than or equal to A1 (mild), 0.81 (95% CI: 0.72, 0.89) for an inflammation grade greater than or equal to A2 (moderate), and 0.85 (95% CI: 0.74, 0.97) for an inflammation grade equal to A3 (marked). Attenuation coefficient enabled the identification of steatosis, with an AUC of 0.88 (95% CI: 0.80, 0.97) for steatosis grade greater than or equal to S1 (mild), 0.86 (95% CI: 0.79, 0.93) for steatosis grade greater than or equal to S2 (moderate), and 0.79 (95% CI: 0.68, 0.89) for steatosis grade equal to S3 (severe). Shear-wave speed enabled the identification of fibrosis, with an AUC of 0.79 (95% CI: 0.69, 0.88) for fibrosis stage greater than or equal to F1 (portal fibrosis), 0.88 (95% CI: 0.82, 0.94) for fibrosis stage greater than or equal to F2 (periportal fibrosis), 0.90 (95% CI: 0.84, 0.96) for fibrosis stage greater than or equal to F3 (septal fibrosis), and 0.95 (95% CI: 0.91, 0.99) for fibrosis stage equal to F4 (cirrhosis). The combination of dispersion slope, attenuation coefficient, and shear-wave speed showed an AUC of 0.81 (95% CI: 0.71, 0.91) for the diagnosis of NASH. Conclusion Dispersion slope, attenuation coefficient, and shear-wave speed were found to be useful for assessing lobular inflammation, steatosis, and fibrosis, respectively, in participants with biopsy-proven nonalcoholic fatty liver disease. © RSNA, 2020 Online supplemental material is available for this article.
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Affiliation(s)
- Katsutoshi Sugimoto
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Fuminori Moriyasu
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Hisashi Oshiro
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Hirohito Takeuchi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Masakazu Abe
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Yu Yoshimasu
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Yoshitaka Kasai
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Kentaro Sakamaki
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Takeshi Hara
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
| | - Takao Itoi
- From the Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan (K. Sugimoto, H.T., M.A., Y.Y., Y.K., T.I.); Department of Pathology, Jichi Medical University, Tochigi, Japan (H.O.); Center for Data Science, Yokohama City University, Kanagawa, Japan (K. Sakamaki); Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan (F.M.); and Department of Electrical, Electronic and Computer Engineering, Faculty of Engineering, Gifu University, Gifu, Japan (T.H.)
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Sugimoto K, Abe M, Yoshimasu Y, Takeuchi H, Kasai Y, Itoi T. Irreversible electroporation of hepatocellular carcinoma: the role of ultrasonography. Ultrasonography 2020; 39:229-237. [PMID: 32450674 PMCID: PMC7315300 DOI: 10.14366/usg.20023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 04/02/2020] [Indexed: 12/26/2022] Open
Abstract
Irreversible electroporation (IRE) is a novel form of soft tissue ablation therapy that uses high-current electrical pulses to induce the formation of pores in the cell membrane, leading to cell death. Although outcome data for the ablation of hepatocellular carcinoma (HCC) by IRE are limited, early results are encouraging and may suggest equivalency to the outcomes achieved by thermal ablation methods such as radiofrequency ablation (RFA) and microwave ablation (MWA). However, IRE can be a challenging and very time-consuming procedure compared to RFA and MWA. In this review article, we not only evaluate the efficacy and safety of IRE for the treatment of HCC, but also discuss imaging guidance, ablation monitoring, and endpoint assessment, with a particular focus on ultrasonography.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Masakazu Abe
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yoshitaka Kasai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Lee JY, Minami Y, Choi BI, Lee WJ, Chou YH, Jeong WK, Park MS, Kudo N, Lee MW, Kamata K, Iijima H, Kim SY, Numata K, Sugimoto K, Maruyama H, Sumino Y, Ogawa C, Kitano M, Joo I, Arita J, Liang JD, Lin HM, Nolsoe C, Gilja OH, Kudo M. The AFSUMB Consensus Statements and Recommendations for the Clinical Practice of Contrast-Enhanced Ultrasound using Sonazoid. J Med Ultrasound 2020; 28:59-82. [PMID: 32874864 PMCID: PMC7446696 DOI: 10.4103/jmu.jmu_124_19] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/09/2020] [Accepted: 02/17/2020] [Indexed: 12/13/2022] Open
Abstract
The first edition of the guidelines for the use of ultrasound contrast agents was published in 2004, dealing with liver applications. The second edition of the guidelines in 2008 reflected changes in the available contrast agents and updated the guidelines for the liver, as well as implementing some nonliver applications. The third edition of the contrast-enhanced ultrasound (CEUS) guidelines was the joint World Federation for Ultrasound in Medicine and Biology-European Federation of Societies for Ultrasound in Medicine and Biology (WFUMB-EFSUMB) venture in conjunction with other regional US societies such as Asian Federation of Societies for Ultrasound in Medicine and Biology, resulting in a simultaneous duplicate on liver CEUS in the official journals of both WFUMB and EFSUMB in 2013. However, no guidelines were described mainly for Sonazoid due to limited clinical experience only in Japan and Korea. The new proposed consensus statements and recommendations provide general advice on the use of Sonazoid and are intended to create standard protocols for the use and administration of Sonazoid in hepatic and pancreatobiliary applications in Asian patients and to improve patient management.
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Affiliation(s)
- Jae Young Lee
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Yasunori Minami
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
| | - Byung Ihn Choi
- Department of Radiology, Chung Ang University Hospital, Seoul, Korea
| | - Won Jae Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yi-Hong Chou
- Department of Medical Imaging and Radiological Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan.,Department of Radiology, National Yang Ming University, Taipei, Taiwan
| | - Woo Kyoung Jeong
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi-Suk Park
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Nobuki Kudo
- Laboratory of Biomedical Engineering, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan
| | - Min Woo Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
| | - Hiroko Iijima
- Department of Ultrasound, Hepatobiliary and Pancreatic Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - So Yeon Kim
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hitoshi Maruyama
- Department of Gastroenterology, Juntendo University, Tokyo, Japan
| | - Yasukiyo Sumino
- Department of Gastroenterology and Hepatology, Toho University Medical Center, Tokyo, Japan
| | - Chikara Ogawa
- Department of Gastroenterology and Hepatology, Takamatsu Red Cross Hospital, Takamatsu, Japan
| | - Masayuki Kitano
- Department of Gastroenterology and Hepatology, Wakayama Medical University Hospital, Wakayama, Japan
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Junichi Arita
- Hepato-Biliary-Pancreatic Surgery Division and Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ja-Der Liang
- Department of Gastroenterology and Hepatology, National Taiwan University, Taipei, Taiwan
| | - Hsi-Ming Lin
- Department of Gastroenterology and Hepatology, Chang Gung University, Taipei, Taiwan
| | - Christian Nolsoe
- Ultrasound Section, Division of Surgery, Department of Gastroenterology, Herlev Hospital, Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Copenhagen, Denmark
| | - Odd Helge Gilja
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
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Tanaka N, Shenton M, Kawahara Y, Kumagai M, Sakai H, Kanamori H, Yonemaru J, Fukuoka S, Sugimoto K, Ishimoto M, Wu J, Ebana K. Whole-Genome Sequencing of the NARO World Rice Core Collection (WRC) as the Basis for Diversity and Association Studies. Plant Cell Physiol 2020; 61:922-932. [PMID: 32101292 PMCID: PMC7426033 DOI: 10.1093/pcp/pcaa019] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/16/2020] [Indexed: 05/12/2023]
Abstract
Genebanks provide access to diverse materials for crop improvement. To utilize and evaluate them effectively, core collections, such as the World Rice Core Collection (WRC) in the Genebank at the National Agriculture and Food Research Organization, have been developed. Because the WRC consists of 69 accessions with a high degree of genetic diversity, it has been used for >300 projects. To allow deeper investigation of existing WRC data and to further promote research using Genebank rice accessions, we performed whole-genome resequencing of these 69 accessions, examining their sequence variation by mapping against the Oryza sativa ssp. japonica Nipponbare genome. We obtained a total of 2,805,329 single nucleotide polymorphisms (SNPs) and 357,639 insertion-deletions. Based on the principal component analysis and population structure analysis of these data, the WRC can be classified into three major groups. We applied TASUKE, a multiple genome browser to visualize the different WRC genome sequences, and classified haplotype groups of genes affecting seed characteristics and heading date. TASUKE thus provides access to WRC genotypes as a tool for reverse genetics. We examined the suitability of the compact WRC population for genome-wide association studies (GWASs). Heading date, affected by a large number of quantitative trait loci (QTLs), was not associated with known genes, but several seed-related phenotypes were associated with known genes. Thus, for QTLs of strong effect, the compact WRC performed well in GWAS. This information enables us to understand genetic diversity in 37,000 rice accessions maintained in the Genebank and to find genes associated with different phenotypes. The sequence data have been deposited in DNA Data Bank of Japan Sequence Read Archive (DRA) (Supplementary Table S1).
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Affiliation(s)
- N Tanaka
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - M Shenton
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - Y Kawahara
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba Ibaraki, 305-8517, Japan
| | - M Kumagai
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba Ibaraki, 305-8517, Japan
| | - H Sakai
- Advanced Analysis Center, National Agriculture and Food Research Organization, Tsukuba Ibaraki, 305-8517, Japan
| | - H Kanamori
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - J Yonemaru
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - S Fukuoka
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - K Sugimoto
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - M Ishimoto
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - J Wu
- Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, 305-8518 Japan
| | - K Ebana
- Genetic Resources Center, National Agriculture and Food Research Organization, Plant Genetic Diversity Laboratory, Tsukuba, Ibaraki 305-8502, Japan
- Corresponding author: E-mail, ; Fax, +81-29-838-7408
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Lee JY, Minami Y, Choi BI, Lee WJ, Chou YH, Jeong WK, Park MS, Kudo N, Lee MW, Kamata K, Iijima H, Kim SY, Numata K, Sugimoto K, Maruyama H, Sumino Y, Ogawa C, Kitano M, Joo I, Arita J, Liang JD, Lin HM, Nolsoe C, Gilja OH, Kudo M. The AFSUMB Consensus Statements and Recommendations for the Clinical Practice of Contrast-Enhanced Ultrasound using Sonazoid. Ultrasonography 2020; 39:191-220. [PMID: 32447876 PMCID: PMC7315291 DOI: 10.14366/usg.20057] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/11/2022] Open
Abstract
The first edition of the guidelines for the use of ultrasound contrast agents was published in 2004, dealing with liver applications. The second edition of the guidelines in 2008 reflected changes in the available contrast agents and updated the guidelines for the liver, as well as implementing some nonliver applications. The third edition of the contrast-enhanced ultrasound (CEUS) guidelines was the joint World Federation for Ultrasound in Medicine and Biology-European Federation of Societies for Ultrasound in Medicine and Biology (WFUMB-EFSUMB) venture in conjunction with other regional US societies such as Asian Federation of Societies for Ultrasound in Medicine and Biology, resulting in a simultaneous duplicate on liver CEUS in the official journals of both WFUMB and EFSUMB in 2013. However, no guidelines were described mainly for Sonazoid due to limited clinical experience only in Japan and Korea. The new proposed consensus statements and recommendations provide general advice on the use of Sonazoid and are intended to create standard protocols for the use and administration of Sonazoid in hepatic and pancreatobiliary applications in Asian patients and to improve patient management.
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Affiliation(s)
- Jae Young Lee
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Yasunori Minami
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
| | - Byung Ihn Choi
- Department of Radiology, Chung Ang University Hospital, Seoul, Korea
| | - Won Jae Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yi-Hong Chou
- Department of Medical Imaging and Radiological Technology, Yuanpei University of Medical Technology, Hsinchu, Taiwan.,Department of Radiology, National Yang Ming University, Taipei, Taiwan
| | - Woo Kyoung Jeong
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Mi-Suk Park
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Nobuki Kudo
- Laboratory of Biomedical Engineering, Graduate School of Information Science and Technology, Hokkaido University, Sapporo, Japan
| | - Min Woo Lee
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ken Kamata
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
| | - Hiroko Iijima
- Department of Ultrasound, Hepatobiliary and Pancreatic Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - So Yeon Kim
- Department of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Kazushi Numata
- Gastroenterological Center, Yokohama City University Medical Center, Yokohama, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hitoshi Maruyama
- Department of Gastroenterology, Juntendo University, Tokyo, Japan
| | - Yasukiyo Sumino
- Department of Gastroenterology and Hepatology, Toho University Medical Center, Tokyo, Japan
| | - Chikara Ogawa
- Department of Gastroenterology and Hepatology, Takamatsu Red Cross Hospital, Takamatsu, Japan
| | - Masayuki Kitano
- Department of Gastroenterology and Hepatology, Wakayama Medical University Hospital, Wakayama, Japan
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, Seoul, Korea
| | - Junichi Arita
- Hepato-Biliary-Pancreatic Surgery Division and Artificial Organ and Transplantation Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ja-Der Liang
- Department of Gastroenterology and Hepatology, National Taiwan University, Taipei, Taiwan
| | - Hsi-Ming Lin
- Department of Gastroenterology and Hepatology, Chang Gung University, Taipei, Taiwan
| | - Christian Nolsoe
- Ultrasound Section, Division of Surgery, Department of Gastroenterology, Herlev Hospital, Copenhagen Academy for Medical Education and Simulation, University of Copenhagen, Copenhagen, Denmark
| | - Odd Helge Gilja
- National Centre for Ultrasound in Gastroenterology, Haukeland University Hospital, Bergen, Norway.,Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Masatoshi Kudo
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Kindai University, Higashi-Osaka, Japan
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Sugimoto K, Kakimi K, Takeuchi H, Fujieda N, Saito K, Sato E, Sakamaki K, Moriyasu F, Itoi T. Irreversible Electroporation versus Radiofrequency Ablation: Comparison of Systemic Immune Responses in Patients with Hepatocellular Carcinoma. J Vasc Interv Radiol 2020; 30:845-853.e6. [PMID: 31126596 DOI: 10.1016/j.jvir.2019.03.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/28/2019] [Accepted: 03/03/2019] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Irreversible electroporation (IRE) differs from thermal radiofrequency (RF) ablation, especially in terms of the reparative process in the ablation zone induced. To elucidate this, the systemic immune responses after 2 mechanistically different types of ablation (IRE and RF ablation) were evaluated in patients with hepatocellular carcinoma (HCC). MATERIALS AND METHODS Twenty-one patients with HCC who underwent either RF ablation (n = 11) or IRE (n = 10) were studied. Peripheral blood samples were collected from all patients at 4 timepoints: before ablation, within 1 hour after ablation, 1 day after ablation, and 4 days after ablation. The phenotypes and functions of immune cells in peripheral blood and serum levels of cytokines and chemokines were monitored and analyzed using the mixed-effects model. Follow-up radiological images were also obtained to assess temporal changes in the ablation zone. RESULTS The most significant difference was seen in the levels of macrophage migration inhibitory factor (MIF) in the IRE group compared to the RF ablation group (P = .0011): the serum levels of MIF in the IRE group significantly increased immediately after IRE and then rapidly decreased to the pre-ablation range 1 day after IRE, but, in contrast, no consistent trend was observed in the RF ablation group. The axial diameter (P = .0009) and area (P = .0192) of the ablation zone of IRE were significantly smaller than those of RF ablation 1 year after ablation. CONCLUSIONS IRE was found to be associated with a significant early increase in MIF levels, which may facilitate the early reparative process and result in significant shrinkage of the ablation zone.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
| | - Kazuhiro Kakimi
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan; Cancer Immunology Data Multi-level Integration Unit, Medical Science Innovation Hub Program, RIKEN, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Nao Fujieda
- Department of Immunotherapeutics, The University of Tokyo Hospital, Tokyo, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Eiichi Sato
- Department of Pathology (Medical Research Center), Institute of Medical Science, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
| | - Kentaro Sakamaki
- Department of Biostatistics and Bioinformatics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Fuminori Moriyasu
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
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Nakamura K, Yamada A, Kato M, Jinno S, Takahashi A, Sugimoto K, Sugimoto K, Ishikawa T, Ozaki Y, Ishii J. P1512 Combination of mitral annular peak systolic and early diastolic velocities with early transmitral peak flow velocity: a new prognostic echo index in patients with acute coronary syndrome. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
One of the novel echocardiographic indices reflecting left ventricular (LV) diastolic filling is the combination of mitral annular peak systolic (s’) and early diastolic velocities (e’) with early transmitral peak flow velocity (E); E/(e’ x s’). This index is reported to be useful to predict a prognosis of heart failure patients regardless of their LV ejection fraction (LVEF).Purpose: The aim of this study was to examine whether or not E/(e’ x s’) could predict cardiac events in patients with acute coronary syndrome (ACS).Methods: We studies consecutive ACS patients hospitalized in our institution between December 2009 and February 2012. They underwent echo examination within 7 days after admission. By use of Doppler tissue imaging, e’ and s’ were respectively calculated by averaging the peak velocities measured at both septal and lateral mitral annulus in 4-chamber view. The exclusion criteria were as follows: atrial fibrillation, significant valvular diseases and inadequate echo images. Cardiac events were defined as re-hospitalization due to recurrent ACS and/or heart failure, and cardiac mortality.Results: In total, 168 patients were eligible for this study (mean age 67 ± 11 years, mean LVEF 51.7 ± 10.3 %). Median follow-up period was 22.5 months. During the follow-up, cardiac events occurred in 27 patients (16.1%). Between the patients with cardiac events and those without, there were significant differences in LV end-systolic volume (44.2 ± 29.1 vs 33.2 ± 13.6 ml, p < 0.05), LV mass index (122.4 ± 38.9 vs 107.5 ± 26.4 g/m², p < 0.05), left atrial volume index (31.7 ± 9.2 vs 27.6 ± 9.4 ml/m², p < 0.05), LVEF (45.7 ± 13.5 vs 52.9 ± 9.2 %, p < 0.05), s’ (5.1 ± 1.6 vs 7.1 ± 1.7 cm/sec, p < 0.001), e’ (4.8 ± 1.3 vs 6.0 ± 1.9 cm/sec, p < 0.05), E/e’ (16.4 ± 6.6 vs 12.5 ± 4.9, p < 0.05), E/(e’ x s’) (3.78 ± 2.52 vs 1.94 ± 1.08, p < 0.001), and serum B-type natriuretic peptide (334.7 ± 420.1 vs 113.8 ± 177.2 pg/ml, p < 0.05). While Cox proportional hazard multivariate analysis detected that E/(e’ x s’) and E/e’ were independent predictors of cardiac events, E/(e’ x s’) was more powerful than E/e’ (p = 0.0002 vs p = 0.0072). ROC analysis revealed that 2.35 of E/(e’ x s’) was the optimal cutoff values to predict cardiac events in ACS patients (AUC 0.79). Patients with E/(e’ x s’) <2.35 had significantly better prognosis than the rest (p < 0.0001, Log-rank; Figure)Conclusion: E/(e’ x s’) could be a useful echo marker to predict cardiac events in ACS patients.
Abstract P1512 Figure.
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Affiliation(s)
- K Nakamura
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - A Yamada
- Fujita Health University, Department of Cardiology, Toyoake, Japan
| | - M Kato
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - S Jinno
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - A Takahashi
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - K Sugimoto
- Fujita Health University, Department of Medical Technology, Toyoake, Japan
| | - K Sugimoto
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - T Ishikawa
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - Y Ozaki
- Fujita Health University, Department of Cardiology, Toyoake, Japan
| | - J Ishii
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
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Nakamura K, Yamada A, Jinno S, Kato M, Takahashi A, Sugimoto K, Sugimoto K, Ishikawa T, Ozaki Y, Ishii J. P1508 Left ventricular diastolic function plays a different role on mortality depending on the severity of systolic dysfunction in acute heart failure patients with reduced ejection fraction. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
It remains to be clarified whether clinical significance of left ventricular (LV) diastolic function differs depending on the severity of LV systolic dysfunction in patients with acute heart failure (AHF). The aim of this study was to examine the prognostic role of LV diastolic function in AHF patients with various systolic dysfunction.Methods: We studied consecutive hospitalized AHF patients with LV ejection fraction (LVEF) <50%. The exclusion criteria were as follows: atrial fibrillation, severe mitral regurgitation, and inadequate echo image quality. They underwent echocardiography on admission. The eligible patients (n = 289, 165 males, 76 ± 10 years) were divided into 4 groups based on LVEF and left atrial pressure (LAP) grade estimated as in the ESC guidelines: Group I (LVEF 40-49% (mildly reduced LVEF)/normal LAP, n = 28), II (mildly reduced EF/increased LAP, n = 38), III (LVEF <40% (severely reduced LVEF)/normal LAP, n = 110), and IV (severely reduced LVEF/increased LAP, n = 113). Cardiac death was examined up to 60 months.Results: In total, 58 patients (20%) died because of cardiac events during the follow-up (mean 20 ± 19 months). In patients with mildly reduced LVEF, Group I showed significantly less cardiac death ratio than II (n = 1 vs 10, Group I vs II, p = 0.03). On the other hand, in patients with severely reduced LVEF, there was no significant difference in cardiac death ratio between Group III and IV (n = 23 vs 24, Group III vs IV, p = 0.80). That is, LAP grade was a prognostic marker when the patients had mild LV systolic dysfunction, whereas it did not contribute to the prediction of cardiac mortality when patients showed severely reduced LV systolic function. Group I showed significantly better prognosis than those with severe LV systolic dysfunction regardless of LAP grade (Group III, IV) (Group I vs III, p = 0.04; Group I vs IV, p = 0.04).Conclusions: LV diastolic function may have a different clinical significance depending on the severity of LV systolic dysfunction in AHF patients.
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Affiliation(s)
- K Nakamura
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - A Yamada
- Fujita Health University, Department of Cardiology, Toyoake, Japan
| | - S Jinno
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - M Kato
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - A Takahashi
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - K Sugimoto
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - K Sugimoto
- Fujita Health University, Department of Medical Technology, Toyoake, Japan
| | - T Ishikawa
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
| | - Y Ozaki
- Fujita Health University, Department of Cardiology, Toyoake, Japan
| | - J Ishii
- Fujita Health University Hospital, Clinical Laboratory, Toyoake, Japan
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Watanabe M, Higashi T, Mine H, Takagi H, Ozaki Y, Muto S, Okabe N, Hasegawa T, Shio Y, Sugimoto K, Chiba H, Suzuki H. P2.06-20 Characterization of Claudin15 as a New Diagnostic Marker for Malignant Pleural Mesotheliomas. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ninomiya T, Nogami N, Kozuki T, Harada D, Kubo T, Ohashi K, Kuyama S, Kudo K, Bessho A, Fujimoto N, Aoe K, Shibayama T, Minami D, Sugimoto K, Ochi N, Takigawa N, Hotta K, Kiura K. Updated analysis of a phase I trial of afatinib (Afa) and bevacizumab (Bev) in chemo-naïve patients (pts) with advanced non-small cell lung cancer (NSCLC) harboring EGFR-mutations: OLCSG1404. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz260.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kösters M, Leufken J, Schulze S, Sugimoto K, Klein J, Zahedi RP, Hippler M, Leidel SA, Fufezan C. pymzML v2.0: introducing a highly compressed and seekable gzip format. Bioinformatics 2019; 34:2513-2514. [PMID: 29394323 DOI: 10.1093/bioinformatics/bty046] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/30/2018] [Indexed: 11/13/2022] Open
Abstract
Motivation In the new release of pymzML (v2.0), we have optimized the speed of this established tool for mass spectrometry data analysis to adapt to increasing amounts of data in mass spectrometry. Thus, we integrated faster libraries for numerical calculations, improved data retrieving algorithms and have optimized the source code. Importantly, to adapt to rapidly growing file sizes, we developed a generalizable compression scheme for very fast random access and applied this concept to mzML files to retrieve spectral data. Results pymzML performs at par with established C programs when it comes to processing times. However, it offers the versatility of a scripting language, while adding unprecedented fast random access to compressed files. Additionally, we designed our compression scheme in such a general way that it can be applied to any field where fast random access to large data blocks in compressed files is desired. Availability and implementation pymzML is freely available on https://github.com/pymzML/pymzML under GPL license. pymzML requires Python3.4+ and optionally numpy. Documentation available on http://pymzml.readthedocs.io.
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Affiliation(s)
- M Kösters
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany
| | - J Leufken
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany.,Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - S Schulze
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany
| | - K Sugimoto
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany
| | - J Klein
- Bioinformatics Program, Boston University, One Silber Way, Boston, MA, USA
| | - R P Zahedi
- Gerald Bronfman Department of Oncology, Jewish General Hospital, McGill University, 5100 de Maisonneuve Boulevard West, Suite 720, Montreal, Quebec, Canada.,Segal Cancer Proteomics Centre, Lady Davis Institute, Jewish General Hospital, McGill University, 3755 Côte-Sainte-Catherine Road, Montreal, Quebec, Canada
| | - M Hippler
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany
| | - S A Leidel
- Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - C Fufezan
- Institute of Plant Biology and Biotechnology, WWU Münster, Münster, Germany.,Cellzome A GSK Company, Heidelberg, Germany
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Yoshimasu Y, Furuichi Y, Kasai Y, Takeuchi H, Sugimoto K, Nakamura I, Itoi T. Predictive factors for hepatocellular carcinoma occurrence or recurrence after direct-acting antiviral agents in patients with chronic hepatitis C. J Gastrointestin Liver Dis 2019; 28:63-71. [PMID: 30851174 DOI: 10.15403/jgld.2014.1121.281.hpc] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
BACKGROUND AND AIMS Direct-acting antiviral agents (DAAs) and the risk of hepatocellular carcinoma (HCC) is controversially reported in the literature. The primary endpoints of this study were to clarify the cumulative incidence and recurrence rate of HCC after DAA treatment. The secondary endpoints were to identify the factors associated with the occurrence or recurrence of HCC after DAAs treatment. METHODS Of 234 HCV patients, 211 with no history of HCC (no-HCC-history group) and 23 with previous treated HCC history (HCC-history group) were treated with DAAs and followed for more than 24 weeks to determine the incidence of HCC. Platelet count, albumin, α-fetoprotein (AFP) level, L3%, the FIB-4 index and APRI scores were analyzed as possible factors associated with HCC occurrence and recurrence. An intergroup comparison was made of the cumulative incidence of HCC. Cox proportional hazards regression was used to determine associations between blood test values and risk of HCC. RESULTS The median observation period was 21 months. Cumulative incidence of HCC was higher in the HCC-history group than in the no-HCC-history group (p < 0.0001, 19.0 and 0.52 per 100 patient-years, respectively). Univariate analysis revealed platelet count, albumin, α-fetoprotein (AFP) level, AFP-L3%, and FIB-4 index and APRI scores at the end of DAA treatment as being significantly associated with occurrence/recurrence of HCC. Multivariate analysis revealed that AFP levels before and after the administration of DAAs and AFP-L3% after DAA were independently associated with the occurrence/recurrence of HCC (p = 0.045, 0.043, 0.005, respectively). CONCLUSION The HCC occurrence rate after DAA treatment was very low, and the recurrence rate lower than that in previous interferon reports. The AFP level and AFP-L3% were identified as important factors in predicting occurrence/recurrence of HCC. Careful observation is needed when increased levels of AFP or AFP-L3% after DAAs treatment are observed.
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Affiliation(s)
- Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yoshihiro Furuichi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
| | - Yoshitaka Kasai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Ikuo Nakamura
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Sugimoto K, Moriyasu F, Oshiro H, Takeuchi H, Yoshimasu Y, Kasai Y, Itoi T. Clinical utilization of shear wave dispersion imaging in diffuse liver disease. Ultrasonography 2019; 39:3-10. [PMID: 31645092 PMCID: PMC6920618 DOI: 10.14366/usg.19031] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 07/26/2019] [Indexed: 12/31/2022] Open
Abstract
Shear wave (SW) dispersion imaging is a newly developed imaging technology for assessing the dispersion slope of SWs, which is related to tissue viscosity in diffuse liver disease. Our preclinical and preliminary clinical studies have shown that SW speed is more useful than dispersion slope for predicting the degree of fibrosis and that dispersion slope is more useful than SW speed for predicting the degree of necroinflammation. Thus, dispersion slope, which reflects viscosity, may provide additional pathophysiological insight into diffuse liver disease.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Fuminori Moriyasu
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Tokyo, Japan
| | - Hisashi Oshiro
- Department of Pathology, Jichi Medical University, Shimotsuke, Japan
| | - Hirohito Takeuchi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yu Yoshimasu
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Yoshitaka Kasai
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan
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Nambu K, Koma Y, Sakata H, Kyuma H, Sugimoto K, Fujimoto T. Clinical study of 31 cases of dental implants with maxillary sinus floor augmentation. Int J Oral Maxillofac Surg 2019. [DOI: 10.1016/j.ijom.2019.03.639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Matsushima Y, Hachisuka A, Itoh H, Sugimoto K, Saeki S. Safety and feasibility of transcranial direct current stimulation for patients with post-polio syndrome. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Sugimoto K, Moriyasu F, Tsuchiya T, Nagakawa Y, Hosokawa Y, Saito K, Tsuchida A, Itoi T. Irreversible Electroporation for Nonthermal Tumor Ablation in Patients with Locally Advanced Pancreatic Cancer: Initial Clinical Experience in Japan. Intern Med 2018; 57:3225-3231. [PMID: 29984761 PMCID: PMC6287993 DOI: 10.2169/internalmedicine.0861-18] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Objective To evaluate irreversible electroporation (IRE) for locally advanced pancreatic cancer (LAPC). Methods This study was approved by our local review board. Eight patients with histologically proven LAPC ≤5 cm were prospectively enrolled to undergo ultrasound-guided IRE. The primary endpoint was complications within 90 days. Secondary outcomes were the overall survival (OS) and time to local progression. Safety was assessed using Common Terminology Criteria for Adverse Events Version 4.0. Results All patients were treated successfully. The median procedure time was 150 min. The median largest tumor diameter was 29.5 mm (20.0-48.0 mm) in the pancreatic head (n=5) and body (n=3). Open (n=4) and percutaneous (n=4) approaches were used. No patients died within 90 days after IRE. There were 5 minor complications in 3 patients and 4 major complications in 3 patients. The incidence rates of major complications did not differ significantly between the approaches. The median time to local progression after IRE was 12.0 months, and the median OS was 17.5 months from IRE and 24.0 months from the diagnosis, with no significant differences between the approaches. Conclusions Percutaneous and open IRE may be acceptable for patients with LAPC (despite some major adverse events) and may represent a useful new therapeutic option.
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Affiliation(s)
- Katsutoshi Sugimoto
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Fuminori Moriyasu
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Japan
| | - Takayoshi Tsuchiya
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
| | - Yuichi Nagakawa
- Department of Gastrointestinal Surgery, Tokyo Medical University, Japan
| | - Yuichi Hosokawa
- Department of Gastrointestinal Surgery, Tokyo Medical University, Japan
| | - Kazuhiro Saito
- Department of Radiology, Tokyo Medical University, Japan
| | - Akihiko Tsuchida
- Department of Gastroenterology and Hepatology, International University of Health and Welfare, Sanno Hospital, Japan
| | - Takao Itoi
- Department of Gastroenterology and Hepatology, Tokyo Medical University, Japan
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