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Yu HA, Baik C, Kim DW, Johnson ML, Hayashi H, Nishio M, Yang JCH, Su WC, Gold KA, Koczywas M, Smit EF, Steuer CE, Felip E, Murakami H, Kim SW, Su X, Sato S, Fan PD, Fujimura M, Tanaka Y, Patel P, Sternberg DW, Sellami D, Jänne PA. Translational insights and overall survival in the U31402-A-U102 study of patritumab deruxtecan (HER3-DXd) in EGFR-mutated NSCLC. Ann Oncol 2024; 35:437-447. [PMID: 38369013 DOI: 10.1016/j.annonc.2024.02.003] [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: 10/11/2023] [Revised: 01/26/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024] Open
Abstract
BACKGROUND Human epidermal growth factor receptor 3 (HER3) is broadly expressed in non-small-cell lung cancer (NSCLC) and is the target of patritumab deruxtecan (HER3-DXd), an antibody-drug conjugate consisting of a HER3 antibody attached to a topoisomerase I inhibitor payload via a tetrapeptide-based cleavable linker. U31402-A-U102 is an ongoing phase I study of HER3-DXd in patients with advanced NSCLC. Patients with epidermal growth factor receptor (EGFR)-mutated NSCLC that progressed after EGFR tyrosine kinase inhibitor (TKI) and platinum-based chemotherapy (PBC) who received HER3-DXd 5.6 mg/kg intravenously once every 3 weeks had a confirmed objective response rate (cORR) of 39%. We present median overall survival (OS) with extended follow-up in a larger population of patients with EGFR-mutated NSCLC and an exploratory analysis in those with acquired genomic alterations potentially associated with resistance to HER3-DXd. PATIENTS AND METHODS Safety was assessed in patients with EGFR-mutated NSCLC previously treated with EGFR TKI who received HER3-DXd 5.6 mg/kg; efficacy was assessed in those who also had prior PBC. RESULTS In the safety population (N = 102), median treatment duration was 5.5 (range 0.7-27.5) months. Grade ≥3 adverse events occurred in 76.5% of patients; the overall safety profile was consistent with previous reports. In 78/102 patients who had prior third-generation EGFR TKI and PBC, cORR by blinded independent central review (as per RECIST v1.1) was 41.0% [95% confidence interval (CI) 30.0% to 52.7%], median progression-free survival was 6.4 (95% CI 4.4-10.8) months, and median OS was 16.2 (95% CI 11.2-21.9) months. Patients had diverse mechanisms of EGFR TKI resistance at baseline. At tumor progression, acquired mutations in ERBB3 and TOP1 that might confer resistance to HER3-DXd were identified. CONCLUSIONS In patients with EGFR-mutated NSCLC after EGFR TKI and PBC, HER3-DXd treatment was associated with a clinically meaningful OS. The tumor biomarker characterization comprised the first description of potential mechanisms of resistance to HER3-DXd therapy.
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MESH Headings
- Humans
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/mortality
- Carcinoma, Non-Small-Cell Lung/pathology
- Lung Neoplasms/drug therapy
- Lung Neoplasms/genetics
- Lung Neoplasms/mortality
- Lung Neoplasms/pathology
- ErbB Receptors/genetics
- ErbB Receptors/antagonists & inhibitors
- Female
- Receptor, ErbB-3/genetics
- Receptor, ErbB-3/antagonists & inhibitors
- Middle Aged
- Male
- Aged
- Mutation
- Adult
- Antibodies, Monoclonal, Humanized/administration & dosage
- Antibodies, Monoclonal, Humanized/therapeutic use
- Antibodies, Monoclonal, Humanized/adverse effects
- Aged, 80 and over
- Camptothecin/analogs & derivatives
- Camptothecin/therapeutic use
- Camptothecin/administration & dosage
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal/administration & dosage
- Antibodies, Monoclonal/adverse effects
- Broadly Neutralizing Antibodies
- Immunoconjugates/therapeutic use
- Immunoconjugates/adverse effects
- Immunoconjugates/administration & dosage
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Affiliation(s)
- H A Yu
- Department of Medicine, Medical Oncology, Memorial Sloan Kettering Cancer Center, New York.
| | - C Baik
- University of Washington/Seattle Cancer Care Alliance, Seattle, USA
| | - D-W Kim
- Seoul National University College of Medicine and Seoul National University Hospital, Seoul, South Korea
| | - M L Johnson
- Sarah Cannon Research Institute at Tennessee Oncology, Nashville, USA
| | | | - M Nishio
- The Cancer Institute Hospital of Japanese Foundation for Cancer Research, Tokyo, Japan
| | - J C-H Yang
- National Taiwan University Hospital, Taipei City
| | - W-C Su
- National Cheng Kung University Hospital, Tainan, Taiwan
| | - K A Gold
- Moores Cancer Center at UC San Diego Health, San Diego
| | | | - E F Smit
- Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands
| | - C E Steuer
- Winship Cancer Institute of Emory University, Atlanta, USA
| | - E Felip
- Vall d'Hebron University Hospital and Vall d'Hebron Institute of Oncology, Barcelona, Spain
| | | | - S-W Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - X Su
- Daiichi Sankyo, Inc., Basking Ridge, USA
| | - S Sato
- Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - P-D Fan
- Daiichi Sankyo, Inc., Basking Ridge, USA
| | | | - Y Tanaka
- Daiichi Sankyo, Inc., Basking Ridge, USA
| | - P Patel
- Daiichi Sankyo, Inc., Basking Ridge, USA
| | | | - D Sellami
- Daiichi Sankyo, Inc., Basking Ridge, USA
| | - P A Jänne
- Dana-Farber Cancer Institute, Boston, USA
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Nagayama Y, Hayashi H, Taguchi N, Yoshida R, Harai R, Kidoh M, Oda S, Nakaura T, Hirai T. Diagnostic performance of hepatic CT and chemical-shift MRI to discriminate lipid-poor adrenal adenomas from hepatocellular carcinoma metastases. Abdom Radiol (NY) 2024:10.1007/s00261-024-04228-5. [PMID: 38456897 DOI: 10.1007/s00261-024-04228-5] [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: 11/28/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 03/09/2024]
Abstract
PURPOSE To evaluate the diagnostic performance of multiphase hepatic CT parameters (non-contrast attenuation, absolute and relative washout ratios [APW and RPW, respectively], and relative enhancement ratio [RER]) and chemical-shift MRI (CS-MRI) for discriminating lipid-poor adrenal adenomas (with non-contrast CT attenuation > 10 HU) from metastases in patients with hepatocellular carcinoma (HCC). METHODS This retrospective study included HCC patients with lipid-poor adrenal lesions who underwent multiphase hepatic CT between January 2010 and December 2021. For each adrenal lesion, non-contrast attenuation, APW, RPW, RER, and signal-intensity index (SI-index) were measured. Each parameter was compared between adenomas and metastases. The area under the receiver operating characteristic curves (AUCs) and sensitivities to achieve 100% specificity for adenoma diagnoses were determined. RESULTS 104 HCC patients (78 men; mean age, 71.8 ± 9.6 years) with 63 adenomas and 48 metastases were identified; CS-MRI was performed in 66 patients with 49 adenomas and 21 metastases within one year of CT. Lipid-poor adenomas showed lower non-contrast attenuation (22.9 ± 7.1 vs. 37.9 ± 9.4 HU) and higher APW (40.5% ± 12.8% vs. 23.7% ± 17.4%), RPW (30.0% ± 10.2% vs. 12.4% ± 9.6%), RER (329% ± 152% vs. 111% ± 43.0%), and SI-index (43.3 ± 20.7 vs. 10.8 ± 13.4) than HCC metastases (all p < .001). AUC for non-contrast attenuation, APW, RPW, RER, and SI-index were 0.894, 0.786, 0.904, 0.969, and 0.902, respectively. The sensitivities to achieve 100% specificity were 7.9%, 25.4%, 30.2%, 63.5%, and 24.5%, respectively. Combined RER and APW achieved the highest sensitivity of 73.0%. CONCLUSION Multiphase hepatic CT allows for better discrimination between lipid-poor adrenal adenomas and metastases relative to CS-MRI, especially when combined with RER and washout parameters.
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Affiliation(s)
- Yasunori Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Narumi Taguchi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Ryuya Yoshida
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Ryota Harai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
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Yamaguchi S, Oda S, Kidoh M, Hayashi H, Takashio S, Usuku H, Nagayama Y, Nakaura T, Tsujita K, Hirai T, Aoki T. Cardiac MRI T1 and T2 Mapping as a Quantitative Imaging Biomarker in Transthyretin Amyloid Cardiomyopathy. Acad Radiol 2024; 31:514-522. [PMID: 37775448 DOI: 10.1016/j.acra.2023.08.045] [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: 06/12/2023] [Revised: 08/28/2023] [Accepted: 08/30/2023] [Indexed: 10/01/2023]
Abstract
RATIONALE AND OBJECTIVES This study aimed to assess the utility of cardiac magnetic resonance imaging (MRI) T1 and T2 mapping as quantitative imaging biomarkers in transthyretin amyloid cardiomyopathy (ATTR-CM). MATERIALS AND METHODS This study retrospectively evaluated 74 patients with confirmed wild-type ATTR-CM who underwent cardiac MRI, 99mTc-labeled pyrophosphate (99mTc-PYP) scintigraphy, and echocardiography. We assessed the quantitative disease parameters, for example, left ventricular ejection fraction (LVEF), and global longitudinal strain (GLS) by echocardiography, native T1, extracellular volume fraction (ECV), and native T2 value by cardiac MRI, heart-to-contralateral ratio (H/CL) by 99mTc-PYP, and high-sensitive cardiac troponin T. Myocardial native T2 of ≥50 ms was defined as myocardial edema. Correlations between the disease's quantitative parameters were evaluated, and the ECV was compared to other parameters in ATTR-CM with/without myocardial edema. RESULTS ECV in all patients with ATTR-CM revealed a strong correlation with native T1 (r = 0.62), a moderate correlation with hs-TnT (r = 0.59), LVEF (r = -0.48), GLS (r = 0.58), and H/CL (r = 0.48). Correlations between ECV and other quantitative parameters decreased in ATTR-CM with myocardial edema except for H/CL. Meanwhile, the correlations increased in ATTR-CM without myocardial edema. CONCLUSION The presence of myocardial edema affected the interpretation of ECV assessment, although ECV can be a comprehensive imaging biomarker for ATTR-CM. ECV showed a significant correlation with various quantitative disease parameters and can be a reliable disease monitoring marker in patients with ATTR-CM when myocardial edema was excluded.
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Affiliation(s)
- Shinpei Yamaguchi
- Department of Radiology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan (S.Y., T.A.); Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.).
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan (S.T., H.U., K.T.)
| | - Hiroki Usuku
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan (S.T., H.U., K.T.)
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Chuo-ku, Kumamoto, Japan (S.T., H.U., K.T.)
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University,1-1-1 Honjo, Chuo-ku, Kumamoto, Japan (S.Y., S.O., M.K., H.H., Y.N., T.N., T.H.)
| | - Takatoshi Aoki
- Department of Radiology, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan (S.Y., T.A.)
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4
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Hayashi H, Oda S, Kidoh M, Anai M, Hirakawa K, Takashio S, Yamamoto E, Takamure H, Moriguchi N, Tsujita K, Hirai T. Pulmonary arterial hypertension associated with portal hypertension: Noninvasive comprehensive assessment using computed tomography. Radiol Case Rep 2024; 19:671-674. [PMID: 38111546 PMCID: PMC10726335 DOI: 10.1016/j.radcr.2023.11.013] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/02/2023] [Accepted: 11/05/2023] [Indexed: 12/20/2023] Open
Abstract
Pulmonary arterial hypertension associated with portal hypertension, known as portopulmonary hypertension (PoPH) is one of the important and serious pulmonary complications in patients with portal hypertension. Although there are a large number of patients with portal hypertension due to mainly liver cirrhosis, the number of cases diagnosed with PoPH are far fewer because the causes of dyspnea in patients with cirrhosis are diverse and the disease entity of PoPH is poorly recognized by clinicians. We report here the case with PoPH suggested and assessed comprehensively by dual energy computed tomography (CT) including high-resolution pulmonary CT angiography, pulmonary perfusion imaging, myocardial late iodine enhancement imaging, and myocardial extracellular volume analysis. This refined CT imaging protocol can be used in conjunction with standard chest evaluation and offers a practical and useful approach for the noninvasive "one-stop shop" evaluation of PoPH.
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Affiliation(s)
- Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Miki Anai
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Kyoko Hirakawa
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Eiichiro Yamamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Hiroto Takamure
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Naoya Moriguchi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
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5
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Hayashi H, Oda S, Kidoh M, Yamaguchi S, Yoshimura F, Takashio S, Usuku H, Nagayama Y, Nakaura T, Ueda M, Tsujita K, Hirai T. Myocardial extracellular volume quantification in cardiac amyloidosis: a comparative study between cardiac computed tomography and magnetic resonance imaging. Eur Radiol 2024; 34:1016-1025. [PMID: 37597032 DOI: 10.1007/s00330-023-10129-w] [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: 05/27/2023] [Revised: 06/27/2023] [Accepted: 07/04/2023] [Indexed: 08/21/2023]
Abstract
OBJECTIVES Myocardial extracellular volume (ECV) on computed tomography (CT), an alternative to cardiac magnetic resonance (CMR), has significant practical clinical advantages. However, the consistency between ECVs quantified via CT and CMR in cardiac amyloidosis (CA) has not been investigated sufficiently. Therefore, the current study investigated the application of CT-ECV in CA with CMR-ECV as the reference standard. METHODS We retrospectively evaluated 31 patients with CA who underwent cardiac CT and CMR. Pearson correlation analysis was performed to investigate correlations between CT-ECV and CMR-ECV at each segment. Further, correlations between ECV and clinical parameters were assessed. RESULTS There were no significant differences in the mean global ECVs between CT scan and CMR (51.3% ± 10.2% vs 50.0% ± 10.5%). CT-ECV was correlated with CMR-ECV at the septal (r = 0.88), lateral (r = 0.80), inferior (r = 0.79), anterior (r = 0.77) segments, and global (r = 0.87). In both CT and CMR, the ECV had a weak to strong correlation with high-sensitivity cardiac troponin T level, a moderate correlation with global longitudinal strain, and an inverse correlation with left ventricular ejection fraction. Further, the septal ECV and global ECV had a slightly higher correlation with the clinical parameters. CONCLUSIONS Cardiac CT can quantify myocardial ECV and yield results comparable to CMR in patients with CA. Moreover, a significant correlation between CT-ECV and clinical parameters was observed. Thus, CT-ECV can be an imaging biomarker and alternative to CMR-ECV. CLINICAL RELEVANCE STATEMENT Cardiac CT can quantify myocardial ECV and yield results comparable to CMR in patients with CA, and CT-ECV can be used clinically as an imaging biomarker and alternative to CMR-ECV. KEY POINTS • A significant correlation was found between CT myocardial extracellular volume and cardiac MR myocardial extracellular volume in patients with cardiac amyloidosis. • In CT and cardiac MR, the myocardial extracellular volume correlated well with high-sensitivity cardiac troponin T level, global longitudinal strain, and left ventricular ejection fraction. • CT myocardial extracellular volume can be an imaging biomarker and alternative to cardiac MR myocardial extracellular volume.
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Affiliation(s)
- Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Shinpei Yamaguchi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
- Department of Radiology, University of Occupational and Environmental Health School of Medicine, Kitakyushu, Japan
| | - Fumihiro Yoshimura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Hiroki Usuku
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Mitsuharu Ueda
- Department of Neurology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
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Nagayama Y, Emoto T, Kato Y, Kidoh M, Oda S, Sakabe D, Funama Y, Nakaura T, Hayashi H, Takada S, Uchimura R, Hatemura M, Tsujita K, Hirai T. Improving image quality with super-resolution deep-learning-based reconstruction in coronary CT angiography. Eur Radiol 2023; 33:8488-8500. [PMID: 37432405 DOI: 10.1007/s00330-023-09888-3] [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: 10/11/2022] [Revised: 03/22/2023] [Accepted: 04/23/2023] [Indexed: 07/12/2023]
Abstract
OBJECTIVES To evaluate the effect of super-resolution deep-learning-based reconstruction (SR-DLR) on the image quality of coronary CT angiography (CCTA). METHODS Forty-one patients who underwent CCTA using a 320-row scanner were retrospectively included. Images were reconstructed with hybrid (HIR), model-based iterative reconstruction (MBIR), normal-resolution deep-learning-based reconstruction (NR-DLR), and SR-DLR algorithms. For each image series, image noise, and contrast-to-noise ratio (CNR) at the left main trunk, right coronary artery, left anterior descending artery, and left circumflex artery were quantified. Blooming artifacts from calcified plaques were measured. Image sharpness, noise magnitude, noise texture, edge smoothness, overall quality, and delineation of the coronary wall, calcified and noncalcified plaques, cardiac muscle, and valves were subjectively ranked on a 4-point scale (1, worst; 4, best). The quantitative parameters and subjective scores were compared among the four reconstructions. Task-based image quality was assessed with a physical evaluation phantom. The detectability index for the objects simulating the coronary lumen, calcified plaques, and noncalcified plaques was calculated from the noise power spectrum (NPS) and task-based transfer function (TTF). RESULTS SR-DLR yielded significantly lower image noise and blooming artifacts with higher CNR than HIR, MBIR, and NR-DLR (all p < 0.001). The best subjective scores for all the evaluation criteria were attained with SR-DLR, with significant differences from all other reconstructions (p < 0.001). In the phantom study, SR-DLR provided the highest NPS average frequency, TTF50%, and detectability for all task objects. CONCLUSION SR-DLR considerably improved the subjective and objective image qualities and object detectability of CCTA relative to HIR, MBIR, and NR-DLR algorithms. CLINICAL RELEVANCE STATEMENT The novel SR-DLR algorithm has the potential to facilitate accurate assessment of coronary artery disease on CCTA by providing excellent image quality in terms of spatial resolution, noise characteristics, and object detectability. KEY POINTS • SR-DLR designed for CCTA improved image sharpness, noise property, and delineation of cardiac structures with reduced blooming artifacts from calcified plaques relative to HIR, MBIR, and NR-DLR. • In the task-based image-quality assessments, SR-DLR yielded better spatial resolution, noise property, and detectability for objects simulating the coronary lumen, coronary calcifications, and noncalcified plaques than other reconstruction techniques. • The image reconstruction times of SR-DLR were shorter than those of MBIR, potentially serving as a novel standard-of-care reconstruction technique for CCTA performed on a 320-row CT scanner.
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Affiliation(s)
- Yasunori Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan.
| | - Takafumi Emoto
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yuki Kato
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Sentaro Takada
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Ryutaro Uchimura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
| | - Masahiro Hatemura
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-Ku, Kumamoto, 860-8556, Japan
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Nagayama Y, Emoto T, Hayashi H, Kidoh M, Oda S, Nakaura T, Sakabe D, Funama Y, Tabata N, Ishii M, Yamanaga K, Fujisue K, Takashio S, Yamamoto E, Tsujita K, Hirai T. Coronary Stent Evaluation by CTA: Image Quality Comparison Between Super-Resolution Deep Learning Reconstruction and Other Reconstruction Algorithms. AJR Am J Roentgenol 2023; 221:599-610. [PMID: 37377362 DOI: 10.2214/ajr.23.29506] [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] [Indexed: 06/29/2023]
Abstract
BACKGROUND. A super-resolution deep learning reconstruction (SR-DLR) algorithm may provide better image sharpness than earlier reconstruction algorithms and thereby improve coronary stent assessment on coronary CTA. OBJECTIVE. The purpose of our study was to compare SR-DLR and other reconstruction algorithms in terms of image quality measures related to coronary stent evaluation in patients undergoing coronary CTA. METHODS. This retrospective study included patients with at least one coronary artery stent who underwent coronary CTA between January 2020 and December 2020. Examinations were performed using a 320-row normal-resolution scanner and were reconstructed with hybrid iterative reconstruction (HIR), model-based iterative reconstruction (MBIR), normal-resolution deep learning reconstruction (NR-DLR), and SR-DLR algorithms. Quantitative image quality measures were determined. Two radiologists independently reviewed images to rank the four reconstructions (4-point scale: 1 = worst reconstruction, 4 = best reconstruction) for qualitative measures and to score diagnostic confidence (5-point scale: score ≥ 3 indicating an assessable stent). The assessability rate was calculated for stents with a diameter of 3.0 mm or less. RESULTS. The sample included 24 patients (18 men, six women; mean age, 72.5 ± 9.8 [SD] years), with 51 stents. SR-DLR, in comparison with the other reconstructions, yielded lower stent-related blooming artifacts (median, 40.3 vs 53.4-58.2), stent-induced attenuation increase ratio (0.17 vs 0.27-0.31), and quantitative image noise (18.1 vs 20.9-30.4 HU) and higher in-stent lumen diameter (2.4 vs 1.7-1.9 mm), stent strut sharpness (327 vs 147-210 ΔHU/mm), and CNR (30.0 vs 16.0-25.6) (all p < .001). For both observers, all ranked measures (image sharpness; image noise; noise texture; delineation of stent strut, in-stent lumen, coronary artery wall, and calcified plaque surrounding the stent) and diagnostic confidence showed a higher score for SR-DLR (median, 4.0 for all features) than for the other reconstructions (range, 1.0-3.0) (all p < .001). The assessability rate for stents with a diameter of 3.0 mm or less (n = 37) was higher for SR-DLR (86.5% for observer 1 and 89.2% for observer 2) than for HIR (35.1% and 43.2%), MBIR (59.5% and 62.2%), and NR-DLR (62.2% and 64.9%) (all p < .05). CONCLUSION. SR-DLR yielded improved delineation of the stent strut and in-stent lumen, with better image sharpness and less image noise and blooming artifacts, in comparison with HIR, MBIR, and NR-DLR. CLINICAL IMPACT. SR-DLR may facilitate coronary stent assessment on a 320-row normal-resolution scanner, particularly for small-diameter stents.
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Affiliation(s)
- Yasunori Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takafumi Emoto
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Noriaki Tabata
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Masanobu Ishii
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenshi Yamanaga
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Koichiro Fujisue
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Eiichiro Yamamoto
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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Yoshimura F, Oda S, Kidoh M, Hayashi H, Yonemura M, Miyazaki S, Takashio S, Kuramoto Y, Asano Y, Tsujita K, Hirai T. Cardiac Magnetic Resonance Imaging Findings in Filamin C Variant-Associated Arrhythmogenic Left Ventricular Cardiomyopathy. Circ J 2023; 87:1403. [PMID: 37635079 DOI: 10.1253/circj.cj-23-0480] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Affiliation(s)
- Fumihiro Yoshimura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
| | - Mari Yonemura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
| | - Shuhei Miyazaki
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University
| | - Yuki Kuramoto
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
| | - Yoshihiro Asano
- Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine
- Department of Genomic Medicine, National Cerebral and Cardiovascular Center
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University
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Kidoh M, Oda S, Takashio S, Kawano Y, Hayashi H, Morita K, Emoto T, Shigematsu S, Yoshimura F, Nakaura T, Nagayama Y, Matsuoka M, Ueda M, Tsujita K, Hirai T. Cardiac MRI-derived Extracellular Volume Fraction versus Myocardium-to-Lumen R1 Ratio at Postcontrast T1 Mapping for Detecting Cardiac Amyloidosis. Radiol Cardiothorac Imaging 2023; 5:e220327. [PMID: 37124644 PMCID: PMC10141336 DOI: 10.1148/ryct.220327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 03/02/2023] [Accepted: 03/14/2023] [Indexed: 05/02/2023]
Abstract
Purpose To evaluate the diagnostic performance of myocardium-to-lumen R1 (1/T1) ratio on postcontrast T1 maps for the detection of cardiac amyloidosis in a large patient sample. Materials and Methods This retrospective study included consecutive patients who underwent MRI-derived extracellular volume fraction (MRI ECV) analysis between March 2017 and July 2021 because of known or suspected heart failure or cardiomyopathy. Pre- and postcontrast T1 maps were generated using the modified Look-Locker inversion recovery sequence. Diagnostic performances of MRI ECV and myocardium-to-lumen R1 ratio on postcontrast T1 maps (a simplified index not requiring a native T1 map and hematocrit level data) for detecting cardiac amyloidosis were evaluated using the area under the receiver operating characteristic curve (AUC), sensitivity, and specificity. Results Of 352 patients (mean age, 63 years ± 16 [SD]; 235 men), 136 had cardiac amyloidosis. MRI ECV showed 89.0% (121 of 136; 95% CI: 82%, 94%) sensitivity and 98.6% (213 of 216; 95% CI: 96%, 100%) specificity for helping detect cardiac amyloidosis (cutoff value of 40% [AUC, 0.99 {95% CI: 0.97, 1.00}; P < .001]). Postcontrast myocardium-to-lumen R1 ratio showed 92.6% (126 of 136; 95% CI: 89%, 96%) sensitivity and 93.1% (201 of 216; 95% CI: 89%, 96%) specificity (cutoff value of 0.84 [AUC, 0.98 {95% CI: 0.95, 0.99}; P < .001]). There was no evidence of a difference in AUCs for each parameter (P = .10). Conclusion Postcontrast myocardium-to-lumen R1 ratio showed excellent diagnostic performance comparable to that of MRI ECV in the detection of cardiac amyloidosis.Keywords: MR Imaging, Cardiac, Heart, Cardiomyopathies Supplemental material is available for this article. © RSNA, 2023.
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Hayashi H, Krischner M, Vinogradsky A, Ning Y, Kuransky P, Kaku Y, Naka Y, Yuzefpolskaya M, Colombo P, Sayer G, Uriel N, Takeda K. Acute Right Ventricular Dimensional Change Predicts Outcomes in Patients with Heartmate 3. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1591] [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: 04/05/2023] Open
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Hayashi H, Krischner M, Vinogradsky A, Ning Y, Kuransky P, Kaku Y, Naka Y, Yuzefpolskaya M, Colombo P, Sayer G, Uriel N, Takeda K. Does Lateral Approach Preserve Better Right Ventricular Function after Left Ventricular Assist Device Insertion? J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1593] [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: 04/05/2023] Open
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12
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Hayashi H, Krischner M, Vinogradsky A, Ning Y, Kuransky P, Kaku Y, Naka Y, Yuzefpolskaya M, Colombo P, Sayer G, Uriel N, Takeda K. Preoperative Left Ventricular Diastolic Dimension Index Predicts Outcomes after Heartmate 3 Implantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1592] [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: 04/05/2023] Open
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13
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Kidoh M, Oda S, Takashio S, Hirakawa K, Kawano Y, Shiraishi S, Hayashi H, Nakaura T, Nagayama Y, Funama Y, Ueda M, Tsujita K, Hirai T. CT Extracellular Volume Fraction versus Myocardium-to-Lumen Signal Ratio for Cardiac Amyloidosis. Radiology 2023; 306:e220542. [PMID: 36255307 DOI: 10.1148/radiol.220542] [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] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background Large studies on the diagnostic performance of CT-derived myocardial extracellular volume fraction (ECV) for detecting cardiac amyloidosis are lacking. A simple and practical index as a surrogate for CT ECV would be clinically useful. Purpose To compare the diagnostic performances between CT-derived myocardial ECV and myocardium-to-lumen signal ratio for the detection of cardiac amyloidosis in a large patient sample. Materials and Methods This retrospective study included patients who underwent CT ECV analysis because of suspected heart failure or cardiomyopathy between January 2018 and July 2021. CT ECV was quantified using routine pre-transcatheter aortic valve replacement planning cardiac CT, pre-atrial fibrillation ablation planning cardiac CT, or coronary CT angiography with the addition of unenhanced and delayed phase cardiac CT scans. The diagnostic performances of CT ECV and myocardium-to-lumen signal ratio in delayed phase cardiac CT (a simplified index not requiring unenhanced CT and hematocrit) for detecting cardiac amyloidosis were evaluated using the area under the receiver operating characteristic curve (AUC), sensitivity, and specificity. Results Of 552 patients (mean age, 69 years ± 14 [SD]; 295 men), 41 had cardiac amyloidosis. The sensitivity of CT ECV for amyloidosis was 90% (37 of 41 patients [95% CI: 77, 97]), with a specificity of 92% (472 of 511 patients [95% CI: 90, 95]) and optimal ECV cutoff value of 37% (AUC, 0.97 [95% CI: 0.96, 0.99]). The sensitivity of myocardium-to-lumen signal ratio was 88% (36 of 41 patients [95% CI: 74, 96]), with a specificity of 92% (469 of 511 patients [95% CI: 89, 94]) and optimal myocardium-to-lumen signal ratio cutoff value of 0.87 (AUC, 0.96 [95% CI: 0.94, 0.97]; P = .27 for comparison with ECV). Conclusion CT-derived myocardial extracellular volume fraction and myocardium-to-lumen signal ratio showed comparable and excellent diagnostic performance in detecting cardiac amyloidosis in a large patient sample. © RSNA, 2022 Online supplemental material is available for this article. See also the editorial by Williams in this issue.
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Affiliation(s)
- Masafumi Kidoh
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seitaro Oda
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seiji Takashio
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Kyoko Hirakawa
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yawara Kawano
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Shinya Shiraishi
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Hidetaka Hayashi
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takeshi Nakaura
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yasunori Nagayama
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yoshinori Funama
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Mitsuharu Ueda
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Kenichi Tsujita
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Toshinori Hirai
- From the Departments of Diagnostic Radiology (M.K., S.O., S.S., H.H., T.N., Y.N., T.H.), Cardiovascular Medicine (S.T., K.H., K.T.), Hematology, Rheumatology, and Infectious Disease (Y.K.), and Neurology (M.U.), Graduate School of Medical Sciences, and Department of Medical Physics, Faculty of Life Sciences (Y.F.), Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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Goto M, Nagayama Y, Sakabe D, Emoto T, Kidoh M, Oda S, Nakaura T, Taguchi N, Funama Y, Takada S, Uchimura R, Hayashi H, Hatemura M, Kawanaka K, Hirai T. Lung-Optimized Deep-Learning-Based Reconstruction for Ultralow-Dose CT. Acad Radiol 2023; 30:431-440. [PMID: 35738988 DOI: 10.1016/j.acra.2022.04.025] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/18/2022] [Accepted: 04/30/2022] [Indexed: 01/25/2023]
Abstract
RATIONALE AND OBJECTIVES To evaluate the image properties of lung-specialized deep-learning-based reconstruction (DLR) and its applicability in ultralow-dose CT (ULDCT) relative to hybrid- (HIR) and model-based iterative-reconstructions (MBIR). MATERIALS AND METHODS An anthropomorphic chest phantom was scanned on a 320-row scanner at 50-mA (low-dose-CT 1 [LDCT-1]), 25-mA (LDCT-2), and 10-mA (ULDCT). LDCT were reconstructed with HIR; ULDCT images were reconstructed with HIR (ULDCT-HIR), MBIR (ULDCT-MBIR), and DLR (ULDCT-DLR). Image noise and contrast-to-noise ratio (CNR) were quantified. With the LDCT images as reference standards, ULDCT image qualities were subjectively scored on a 5-point scale (1 = substantially inferior to LDCT-2, 3 = comparable to LDCT-2, 5 = comparable to LDCT-1). For task-based image quality analyses, a physical evaluation phantom was scanned at seven doses to achieve the noise levels equivalent to chest phantom; noise power spectrum (NPS) and task-based transfer function (TTF) were evaluated. Clinical ULDCT (10-mA) images obtained in 14 nonobese patients were reconstructed with HIR, MBIR, and DLR; the subjective acceptability was ranked. RESULTS Image noise was lower and CNR was higher in ULDCT-DLR and ULDCT-MBIR than in LDCT-1, LDCT-2, and ULDCT-HIR (p < 0.01). The overall quality of ULDCT-DLR was higher than of ULDCT-HIR and ULDCT-MBIR (p < 0.01), and almost comparable with that of LDCT-2 (mean score: 3.4 ± 0.5). DLR yielded the highest NPS peak frequency and TTF50% for high-contrast object. In clinical ULDCT images, the subjective acceptability of DLR was higher than of HIR and MBIR (p < 0.01). CONCLUSION DLR optimized for lung CT improves image quality and provides possible greater dose optimization opportunity than HIR and MBIR.
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Affiliation(s)
- Makoto Goto
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takafumi Emoto
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Narumi Taguchi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, Chuo-ku, Kumamoto 862-0976, Japan
| | - Sentaro Takada
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Ryutaro Uchimura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masahiro Hatemura
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto 860-8556, Japan
| | - Koichi Kawanaka
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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Sakai K, Darma PN, Sejati PA, Wicaksono R, Hayashi H, Takei M. Gastric functional monitoring by gastric electrical impedance tomography (gEIT) suit with dual-step fuzzy clustering. Sci Rep 2023; 13:514. [PMID: 36627333 PMCID: PMC9832012 DOI: 10.1038/s41598-022-27060-7] [Citation(s) in RCA: 2] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 12/23/2022] [Indexed: 01/12/2023] Open
Abstract
Gastric Function has been successfully estimated by gastric electrical impedance tomography (gEIT) Suit with dual-step fuzzy clustering. The gEIT Suit which are made of elastic cloth with dual-planar electrodes and compact data acquisition (DAQ) system measures gastric impedance Z to visualize the gastric conductivity distribution σ. The dual-step fuzzy clustering extracts the clustered gastric conductivity distribution kσ, which accurately estimates the gastric function. The gEIT Suit with dual-step fuzzy clustering are applied to eight healthy persons during liquid meal consumption to estimate the gastric function under gastric accommodation phase of 200, 400 and 600 mL based on the gastric emptying phase. As the results, the gEIT Suit successfully estimate the gastric function. By the measured impedance Z, the subjects have a mean temporal impedance [Formula: see text]= - 9.27 [Ohm] and p-value of that [Formula: see text] p(Z) = 0.0013[-]as the t-test result. In the case of gastric conductivity distribution σ, the subjects have a value of spatial mean conductivity distribution ⟨σ⟩ = 0.23[-] and p-value of that ⟨σ⟩ p(σ) = 0.0140[-]. Lastly, in the case gastric volume V, subjects have a gastric volume V = 12.44 [%] and p-value p(V) = 0.0664[-].
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Affiliation(s)
- K. Sakai
- grid.136304.30000 0004 0370 1101Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University, Chiba-Shi, Japan
| | - P. N. Darma
- grid.136304.30000 0004 0370 1101Division of Fundamental Engineering, Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University JSPS International Research Fellow, Chiba-Shi, 263-8522 Japan
| | - P. A. Sejati
- grid.136304.30000 0004 0370 1101Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University, Chiba-Shi, Japan
| | - R. Wicaksono
- grid.136304.30000 0004 0370 1101Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University, Chiba-Shi, Japan
| | - H. Hayashi
- grid.136304.30000 0004 0370 1101Center for Frontier Medical Engineering, Chiba University, Chiba-Shi, Japan
| | - M. Takei
- grid.136304.30000 0004 0370 1101Department of Mechanical Engineering, Graduate School of Science and Engineering, Chiba University, Chiba-Shi, Japan
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Shigematsu S, Oda S, Sakabe D, Matsuoka A, Hayashi H, Taguchi N, Kidoh M, Nagayama Y, Nakaura T, Murakami M, Hatemura M, Hirai T. Practical Preventive Strategies for Extravasation of Contrast Media During CT: What the Radiology Team Should Do. Acad Radiol 2022; 29:1555-1559. [PMID: 35246376 DOI: 10.1016/j.acra.2022.01.007] [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: 10/31/2021] [Revised: 01/05/2022] [Accepted: 01/09/2022] [Indexed: 12/14/2022]
Abstract
RATIONALE AND OBJECTIVES This study aimed to assess the effectiveness of practical preventive strategies (i.e., venous vulnerability assessment and prevention scan protocol rules) taken by our radiology team (radiology nurses, radiology technicians, radiologists) on reducing extravasation of contrast media (ECM) during CT. MATERIALS AND METHODS A total of 73,931 patients who underwent contrast-enhanced CT scans between January 2013 and December 2019 were retrospectively included. Venous vulnerability assessment by the radiology team began in 2015, and prevention scan protocol rules for the prevention of ECM were added in 2017. We defined each period as follows: 2013-2014, no prevention (Period A); 2015-2016, early prevention (Period B, venous vulnerability assessment only); and 2017-2019: late prevention (Period C, venous vulnerability assessment with prevention scan protocol rules). The incident reports, radiology reports, and medical records of patients in whom ECM occurred were reviewed. We compared the frequency of ECM during each period. RESULTS ECM occurred in 0.39% (292/73,931) of the patients. The frequencies of ECM for Periods A, B, and C were 0.62% (121/19,505), 0.43% (89/20,847), and 0.24% (82/33,579), respectively. There were significant differences in the frequencies of ECM among the three periods (Chi-squared test, p < 0.01). CONCLUSION Implementation of venous vulnerability assessment and prevention scan protocol rules by a radiology team can be a practical and simple solution to reduce the risk of ECM during CT.
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Affiliation(s)
- Shinsuke Shigematsu
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Ayumi Matsuoka
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Narumi Taguchi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Michiyo Murakami
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Masahiro Hatemura
- Department of Central Radiology, Kumamoto University Hospital, Chuo-ku, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
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Tamiya M, Goto Y, Kenmotsu H, Kurata T, Murakami S, Yanagitani N, Taniguchi H, Kuyama S, Shimizu J, Yokoyama T, Shimada N, T. M, Tamiya A, Uchiyama A, Imaizumi K, Takahama T, Nishio M, Hayashi H, Shiraiwa N, Okura M, Kikkawa H, Thomaidou D, Kato T. EP08.02-115 A Retrospective, Multicenter, Observational Study to Evaluate Outcomes With Lorlatinib After Alectinib in ALK+ NSCLC in Japan. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.798] [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: 10/14/2022]
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Mamesaya N, Harada H, Hata A, Konno M, Nakamatsu K, Hayashi H, Yamamoto T, Saito R, Mayahara H, Kokubo M, Sato Y, Yoshimura K, Nishimura Y, Yamamoto N, Nakagawa K. 958P Intensity-modulated radiotherapy (IMRT)-adapted chemoradiotherapy (CRT) followed by durvalumab for locally advanced non-small cell lung cancer (NSCLC): A multicenter prospective observational study (WJOG12019L). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1084] [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: 11/01/2022] Open
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Qing Z, Kim H, Soo R, Chiu C, Hayashi H, Kim SW, Teraoka S, Kim DW, Zhan H, Zhao H, Li H, Mok T, Wu YL. 992P Updated analyses from the CROWN study of first-line lorlatinib vs crizotinib in Asian patients with ALK-positive non-small cell lung cancer (NSCLC). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1119] [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: 11/28/2022] Open
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20
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Misako N, Sugawara S, Choi CM, Okamoto T, Yanagitani N, Nosaki K, Takahashi T, Fujiwara Y, Hayashi H, Khoury J, Nieva J, Gabayan A, Raez L, Chen H, Dimou A, Pennell N, Liu G, Ou SH, Seto T, Ohe Y. EP08.02-118 TRUST-II: A Global Phase II Study for Taletrectinib inROS1fusion Positive Lung Cancer and Other Solid Tumors. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.801] [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: 10/14/2022]
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Mazieres J, Kim T, Lim B, Wislez M, Dooms C, Finocchiaro G, Hayashi H, Liam C, Raskin J, Tho L, de Marinis F, Nadal E, Smit E, Le X, Brutlach S, O'Brate Grupp A, Adrian S, Ellers-Lenz B, Karachaliou N, Wu YL. LBA52 Tepotinib + osimertinib for EGFRm NSCLC with MET amplification (METamp) after progression on first-line (1L) osimertinib: Initial results from the INSIGHT 2 study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.08.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Tachihara M, Tsujino K, Shimokawa M, Ishihara T, Hayashi H, Sato Y, Kurata T, Sugawara S, Shiraishi Y, Teraoka S, Azuma K, Daga H, Yamaguchi M, Kodaira T, satouchi M, Yamamoto N, Nakagawa K. MA06.04 Phase II Study of Durvalumab Plus Concurrent Radiotherapy in Unresectable Locally Advanced NSCLC: DOLPHIN Study (WJOG11619L). J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.107] [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: 11/25/2022]
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23
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Kawata A, Imai K, Tamura Y, Kaida T, Mima K, Nakagawa S, Hayashi H, Yamashita Y, Ikeda O, Baba H. Gastrointestinal: Superior mesenteric vein aneurysm treated using interventional radiology. J Gastroenterol Hepatol 2022; 37:1209. [PMID: 35018662 DOI: 10.1111/jgh.15755] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/23/2021] [Accepted: 12/05/2021] [Indexed: 12/09/2022]
Affiliation(s)
- A Kawata
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - K Imai
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Tamura
- Department of Diagnostic Radiology, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - T Kaida
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - K Mima
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - S Nakagawa
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - H Hayashi
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Y Yamashita
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - O Ikeda
- Department of Diagnostic Radiology, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - H Baba
- Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan
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Tanizaki J, Nakagawa K, Hayashi H. Reply to the Letter to the Editor 'Does the result of a small-scale phase II study of nivolumab for cancer of unknown primary justify regulatory approval?' by Y. Sasaki; E. Sato & C. Sakaguchi. Ann Oncol 2022; 33:1083-1084. [PMID: 35772666 DOI: 10.1016/j.annonc.2022.06.006] [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] [Received: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 11/28/2022] Open
Affiliation(s)
- J Tanizaki
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - K Nakagawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan
| | - H Hayashi
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osaka-Sayama, Japan.
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Kawakami H, Sunakawa Y, Inoue E, Matoba R, Noda K, Sato T, Suminaka C, Sakamoto Y, Kawabata R, Ishiguro A, Akamaru Y, Kito Y, Yabusaki H, Matsuyama J, Takahashi M, Makiyama A, Hayashi H, Chamoto K, Honjo T, Nakagawa K, Ichikawa W, Fujii M. SO-8 Soluble programmed cell death ligand 1 associated with clinical outcome in gastric cancer patients treated with nivolumab: Blood based biomarker analysis of DELIVER trial (JACCRO-GC08AR). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.407] [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: 11/01/2022] Open
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26
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Nagayama Y, Goto M, Sakabe D, Emoto T, Shigematsu S, Taguchi N, Maruyama N, Takada S, Uchimura R, Hayashi H, Kidoh M, Oda S, Nakaura T, Funama Y, Hatemura M, Hirai T. Radiation dose optimization potential of deep learning-based reconstruction for multiphase hepatic CT: A clinical and phantom study. Eur J Radiol 2022; 151:110280. [PMID: 35381567 DOI: 10.1016/j.ejrad.2022.110280] [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: 10/26/2021] [Revised: 03/02/2022] [Accepted: 03/28/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE This clinical and phantom study aimed to evaluate the impact of deep learning-based reconstruction (DLR) on image quality and its radiation dose optimization capability for multiphase hepatic CT relative to hybrid iterative reconstruction (HIR). METHODS Task-based image quality was assessed with a physical evaluation phantom; the high- and low-contrast detectability of HIR and DLR images were computed from the noise power spectrum and task-based transfer function at five different size-specific dose estimate (SSDE) values in the range 5.3 to 18.0-mGy. For the clinical study, images of 73 patients who had undergone multiphase hepatic CT under both standard-dose (STD) and lower-dose (LD) examination protocols within a time interval of about four-months on average, were retrospectively examined. STD images were reconstructed with HIR, while LD with HIR (LD-HIR) and DLR (LD-DLR). SSDE, quantitative image noise, and contrast-to-noise ratio (CNR) were compared between protocols. The noise magnitude, noise texture, streak artifact, image sharpness, interface smoothness, and overall image quality were subjectively rated by two independent radiologists. RESULTS In phantom study, the high- and low-contrast detectability of DLR images obtained at 5.3-mGy and 7.3-mGy, respectively, were slightly higher than those obtained with HIR at the STD protocol dose (18.0-mGy). In clinical study, LD-DLR yielded lower image noise, higher CNR, and higher subjective scores for all evaluation criteria than STD (all, p ≤ 0.05), despite having 52.8% lower SSDE (8.0 ± 2.5 vs. 16.8 ± 3.4-mGy). CONCLUSIONS DLR improved the subjective and objective image quality of multiphase hepatic CT compared with HIR techniques, even at approximately half the radiation dose.
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Affiliation(s)
- Yasunori Nagayama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Makoto Goto
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takafumi Emoto
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Shinsuke Shigematsu
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Narumi Taguchi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Natsuki Maruyama
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Sentaro Takada
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Ryutaro Uchimura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Hidetaka Hayashi
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yoshinori Funama
- Department of Medical Radiation Sciences, Faculty of Life Sciences, Kumamoto University, 4-24-1 Kuhonji, Chuo-ku, Kumamoto 862-0976, Japan
| | - Masahiro Hatemura
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1, Honjo, Chuo-ku, Kumamoto 860-8556, Japan
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Mizushima I, Saeki T, Kobayashi D, Hayashi H, Taniguchi Y, Nakata H, Matsui S, Nagasawa T, Yanagita M, Kawano M. POS1349 IMMUNOGLOBULIN G4-RELATED KIDNEY DISEASE’S PREDISPOSITION TO CHRONIC RENAL DYSFUNCTION, COMPLICATIONS OF MALIGNANCY, AND MORTALITY: A LONG-TERM NATIONWIDE MULTICENTER STUDY IN JAPAN. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundIn immunoglobulin G4-related kidney disease (IgG4-RKD), persistent renal insufficiency may be observed despite the good initial response to glucocorticoids[1, 2]. However, its long-term prognosis in relation to renal function as well as malignancy and mortality has not been well clarified.ObjectivesTo clarify the long-term renal prognosis, complications of malignancy, mortality, and factors related to those outcomes in IgG4-RKD.MethodsWe retrospectively reviewed the medical records of patients with IgG4-RKD diagnosed by the expert members of the IgG4-RKD working group in the Japanese Society of Nephrology. We investigated clinical, radiological, and histopathological features at baseline and course of renal function, complications of malignancy, and mortality during the long-term observation periods (median 71 months) in 75 patients. Using collected data, we calculated the crude incidence rates (IR) of chronic kidney disease (CKD) status, malignancy, and death. Cox regression analyses were performed to assess CKD-related factors. Additionally, we calculated the standardized incidence ratio (SIR) of malignancy and standardized mortality ratio (SMR) using national Japan statistics.ResultsFifty-nine patients were male, and 16 were female (median age 70 years). At diagnosis, their median eGFR was 45.1 mL/min/1.73m2 (interquartile range [IQR] 28.6-69.9). Seventy-two patients (96%) were treated with prednisolone at a median initial dose of 30 (IQR 30-39) mg/day, leading to a reasonable initial improvement of renal function. The IR of CKD was 30.2/100 person-years, and 66.7% (50/75) of the patients showed CKD at the last visit. Age- and sex-adjusted Cox regression analyses indicated that lower eGFR (per 10 mL/min/1.73m2, hazard ratio [HR] 0.70, 95% confidence interval [CI] 0.61-0.80), pre-existing hypertension (HR 2.39, 95% CI 1.32-4.34), and wider areas with inflammation (>50% vs. <10%, HR 2.55, 95% CI 1.07-6.08) or fibrosis (>50% vs. <5%, HR 2.84, 95% CI 1.18-6.85) in the biopsied renal specimens at treatment initiation had a significant impact on the time to CKD. Eight patients (10.7%) died during follow-up due to malignancy, severe infection, cerebral hemorrhage, or myocardial infarction. The crude mortality rate was 1.76/100 person-years, and a SMR calculated according to national Japan statistics was 0.97 (95% CI 0.42-1.90). On the other hand, 15 patients were diagnosed as having malignancies during follow-up. The IR of malignancy was 3.71/100 person-years, and the SIR of malignancy was 1.80 (95% CI 1.03-2.93).ConclusionThis study suggests that pre-treated renal insufficiency and extensive renal inflammatory and fibrotic lesions are related to CKD under glucocorticoid therapy in IgG4-RKD. Similarly with the whole IgG4-related disease, IgG4-RKD may have an increased incidence of malignancy but a mortality rate equivalent to the age- and sex-matched Japanese population.References[1]Saeki T et al. The clinical course of patients with IgG4-related kidney disease. Kidney Int. 2013 Oct;84(4):826-33.[2]Mizushima I et al. Factors related to renal cortical atrophy development after glucocorticoid therapy in IgG4-related kidney disease: a retrospective multicenter study. Arthritis Res Ther. 2016 Nov 25;18(1):273.Disclosure of InterestsNone declared
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Hayashi H, Oda S, Emoto T, Kidoh M, Nagayama Y, Nakaura T, Sakabe D, Tokuyasu S, Hirakawa K, Takashio S, Yamamoto E, Tsujita K, Hirai T. Myocardial extracellular volume quantification by cardiac CT in pulmonary hypertension: Comparison with cardiac MRI. Eur J Radiol 2022; 153:110386. [PMID: 35661458 DOI: 10.1016/j.ejrad.2022.110386] [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: 02/18/2022] [Revised: 05/21/2022] [Accepted: 05/26/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE Myocardial extracellular volume (ECV) measured by cardiac magnetic resonance imaging (MRI) has been suggested as a marker of disease severity in pulmonary hypertension (PH). However, consistency between ECVs quantified by computed tomography (CT) and MRI has not been sufficiently investigated in (PH). We investigated the utility of CT-ECV in PH, using MRI-ECV as a reference standard. METHOD We evaluated 20 patients with known or suspected PH who underwent dual-energy CT, cardiac MRI, and right heart catheterization. We used Pearson correlation analysis to investigate correlations between CT-ECV and MRI-ECV. We also assessed correlations between ECV and mean pulmonary artery pressure (mPAP). RESULTS CT-ECV showed a very strong correlation with MRI-ECV at the anterior (r = 0.83) and posterior right ventricular insertion points (RVIPs) (r = 0.84). CT-ECV and MRI-ECV were strongly correlated in the septum and left ventricular free wall (r = 0.79-0.73) but weakly correlated in the right ventricular free wall (r = 0.26). CT-ECV showed a strong correlation with mPAP in the anterior RVIP (r = 0.64) and a moderate correlation in the posterior RVIP and septum (r = 0.50-0.42). Compared with CT-ECV, MRI-ECV had a higher correlation with mPAP; however, the difference was not significant (anterior RVIP, r = 0.72 [MRI-ECV] vs. 0.64 [CT-ECV], p = 0.663; posterior RVIP, r = 0.67 vs. 0.50, p = 0.446). CONCLUSION Dual-energy CT can quantify myocardial ECV and yield results comparable to those obtained using cardiac MRI. CT-ECV in the anterior RVIP could be a noninvasive surrogate marker of disease severity in PH.
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Affiliation(s)
- Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Takafumi Emoto
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Daisuke Sakabe
- Department of Central Radiology, Kumamoto University Hospital, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Shinichi Tokuyasu
- CT Clinical Science, Philips Japan, Kohnan 2-13-37, Minato-ku, Tokyo 108-8507, Japan
| | - Kyoko Hirakawa
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Eiichiro Yamamoto
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto 860-8556, Japan
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Fukuoka T, Yamamoto Y, Usami E, Hayashi H, Utsunomiya J, Kimura M, Nakamura M, Yoshimura T, Toda Y. Expression of Vincristin-induced Peripheral Neuropathy Related to Different Administration Methods. Pharmazie 2022; 77:162-164. [PMID: 35655379 DOI: 10.1691/ph.2022.2329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Vincristine (VCR) is an important drug used in R-CHOP regimens for the treatment of non-Hodgkin's lymphoma. The purpose of this study was to examine whether the administration method affects the incidence of VCR-induced peripheral neuropathy. We investigated the ratio of VCR-induced peripheral neuropathy during rapid intravenous infusion and intravenous drip infusion. A total of 71 patients who had received six or more courses of R-CHOP from January, 2015 to December, 2016 at Komaki City Hospital and Ogaki Municipal Hospital were retrospectively investigated. Peripheral neuropathy was observed in 27/39 patients (69 %) and 24/32 (75 %) in rapid intravenous infusion and intravenous drip infusion of VCR, respectively (P = 0.79). Peripheral neuropathy was observed at a high frequency in this study. Additionally, there was no difference in frequency of peripheral neuropathy due to the difference in administration method. In both groups, the degree of peripheral neuropathy was grade 1 and grade 2 in most patients. However, in rapid intravenous infusion, grade 3 peripheral neuropathy was observed. Some cases required dose reduction and discontinuation in rapid intravenous infusion. In contrast, there were no discontinuing patients in the intravenous drip infusion. Therefore, it was suggested that intravenous drip infusion of VCR reduced serious peripheral neuropathy because the ratio requiring dose reduction and discontinuation was less than that in the rapid group. In conclusion, this study is informative as there are few reports focusing on the administration method of vincristine.
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Affiliation(s)
- T Fukuoka
- Department of Pharmacy, Komaki City Hospital, 1-20 Jyobushi, Komaki-shi, Aichi 485-8520, Japan; ; Department of Pharmacy, Komaki City Hospital, Aichi;,
| | - Y Yamamoto
- Department of Pharmacy, Komaki City Hospital, Aichi
| | - E Usami
- Department of Pharmacy, Ogaki Municipal Hospital
| | - H Hayashi
- Department of Pharmacy, Komaki City Hospital, Aichi
| | - J Utsunomiya
- Department of Pharmacy, Komaki City Hospital, Aichi
| | - M Kimura
- Department of Pharmacy, Ogaki Municipal Hospital
| | - M Nakamura
- Laboratory of Drug Informatics, Gifu Pharmaceutical University, Gifu, Japan
| | - T Yoshimura
- Department of Pharmacy, Ogaki Municipal Hospital
| | - Y Toda
- Department of Pharmacy, Komaki City Hospital, Aichi
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30
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Nagasaka M, Sugawara S, Choi CM, Okamoto T, Yanagitani N, Nosaki K, Takahashi T, Fujiwara Y, Hayashi H, Khoury J, Nieva J, Gabayan A, Raez L, Chen H, Dimou A, Pennell N, Liu G, Ou SH, Seto T, Ohe Y. 77TiP TRUST-II: A global phase II study for taletrectinib in ROS1 fusion-positive lung cancer and other solid tumors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.086] [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: 11/01/2022] Open
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31
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Ueno M, Kabata R, Hayashi H, Terada K, Yamada K. Automatic individual recognition of Japanese macaques (
Macaca fuscata
) from sequential images. Ethology 2022. [DOI: 10.1111/eth.13277] [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: 11/28/2022]
Affiliation(s)
- Masataka Ueno
- Faculty of Applied Sociology Kindai University Osaka Japan
| | - Ryosuke Kabata
- Graduate School of Natural Science and Technology Gifu University Gifu Japan
| | - Hidetaka Hayashi
- Graduate School of Natural Science and Technology Gifu University Gifu Japan
| | | | - Kazunori Yamada
- Graduate School of Human Sciences Osaka University Osaka Japan
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Sugisaki T, Aoyama T, Kawakami K, Yokokawa T, Kobayashi K, Suzuki W, Ogura M, Ichimura T, Chin K, Yamaguchi K, Hanaoka S, Hayashi H, Yamaguchi M. Correlation between magnesium pre-loading and cisplatin-induced nephrotoxicity in 5-fluorouracil/cisplatin combination therapy for esophageal cancer. Pharmazie 2022; 77:85-88. [PMID: 35209969 DOI: 10.1691/ph.2022.11038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The use of cisplatin may cause nephrotoxicity in patients. Hydration solutions supplemented with magnesium could reduce cisplatin-induced nephrotoxicity. In this study, we evaluated the preventive effect of magnesium pre-loading on cisplatin-induced nephrotoxicity in patients with esophageal cancer. We retrospectively evaluated the prevalence of, and risk factors for, nephrotoxicity in 160 patients with esophageal cancer treated with the 5-fluorouracil/cisplatin regimen from 2014 to 2016 with and without magnesium supplementation. Significant differences were observed between the magnesium and non-magnesium groups in terms of frequency of estimated creatinine clearance of grade 2 or higher that was at 4% (n = 3) and 13% (n = 10) (p = 0.027), respectively. The logistic regression analysis revealed that eCcr of grade 2 or higher was significantly associated with the non-magnesium regimen (odds ratio (OR), 4.175; 95% confidence interval (CI) = 1.061-16.430; p = 0.041) and age ≥ 65 years (OR, 13.951; 95% CI = 1.723-112.974; p = 0.014). This study suggests that 20 mEq magnesium pre-loading significantly reduces the prevalence of cisplatin-induced nephrotoxicity. Furthermore, when cisplatin is administered to individuals older than 64 years, a close observation for the onset of cisplatin-induced nephrotoxicity is crucial.
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Affiliation(s)
- T Sugisaki
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - T Aoyama
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo;,
| | - K Kawakami
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - T Yokokawa
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - K Kobayashi
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - W Suzuki
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - M Ogura
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - T Ichimura
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - K Chin
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - K Yamaguchi
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
| | - S Hanaoka
- Department of Pharmacotherapy, School of Pharmacy, Nihon University, Chiba, Japan
| | - H Hayashi
- Department of Pharmacotherapy, School of Pharmacy, Nihon University, Chiba, Japan
| | - M Yamaguchi
- Department of Pharmacy, Cancer Institute Hospital, Japanese Foundation for Cancer Research, Tokyo
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33
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Hayashi H, Oda S, Kidoh M, Nakaura T, Morita K, Nagayama Y, Yoneda T, Takashio S, Misumi Y, Ueda M, Tsujita K, Hirai T. Can myocardial susceptibility quantification be an imaging biomarker for cardiac amyloidosis? Jpn J Radiol 2021; 40:500-507. [PMID: 34841460 PMCID: PMC9068634 DOI: 10.1007/s11604-021-01228-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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/22/2021] [Indexed: 11/17/2022]
Abstract
Purpose This study aimed to evaluate whether quantification of myocardial susceptibility by cardiac magnetic resonance imaging (CMR) can be an imaging biomarker for cardiac amyloidosis (CA). Materials and methods Twenty-six patients with CA underwent CMR, including magnetic phase imaging with a 3.0-T magnetic resonance imaging scanner. Myocardial susceptibility was quantified as a phase shift slope value by magnetic phase analysis. Those values from patients with CA were compared with corresponding values from 18 controls and 15 healthy volunteers. A univariate logistic regression analysis was conducted to identify significant parameters related to CA. Results The phase shift slope, a quantitative parameter of myocardial susceptibility, was significantly lower in the CA group compared with the control group and compared with healthy volunteers (p < 0.01). From a total of 17 tested variables, 6 were considered to be significant predictors of CA (p ≤ 0.05) during the univariate analysis. The phase shift slope yielded the best AUC of 0.89 (95% CI = 0.79–0.98) for the prediction of CA (p < 0.01). The phase shift slope was significantly correlated with the end-diastolic thickness of the interventricular septum (r = − 0.39, p < 0.01) and posterior wall of the left ventricle (r = − 0.35, p = 0.02). Conclusion Myocardial susceptibility analysis by CMR helps in the diagnosis of patients with CA and can be a new quantitative imaging biomarker for CA.
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Affiliation(s)
- Hidetaka Hayashi
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan.
| | - Masafumi Kidoh
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Takeshi Nakaura
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Kosuke Morita
- Department of Central Radiology, Kumamoto University Hospital, Kumamoto, Japan
| | - Yasunori Nagayama
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
| | - Tetsuya Yoneda
- Department of Medical Physics in Advanced Biomedical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Seiji Takashio
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Yohei Misumi
- Department of Neurology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Mitsuharu Ueda
- Department of Neurology, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kenichi Tsujita
- Department of Cardiovascular Medicine, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjyo, Chuo-ku, Kumamoto, 860-8556, Japan
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Tanizaki J, Yonemori K, Akiyoshi K, Minami H, Ueda H, Takiguchi Y, Miura Y, Segawa Y, Takahashi S, Iwamoto Y, Kidera Y, Fukuoka K, Ito A, Chiba Y, Sakai K, Nishio K, Nakagawa K, Hayashi H. Open-label phase II study of the efficacy of nivolumab for cancer of unknown primary. Ann Oncol 2021; 33:216-226. [PMID: 34843940 DOI: 10.1016/j.annonc.2021.11.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [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: 07/23/2021] [Revised: 10/31/2021] [Accepted: 11/21/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cancer of unknown primary (CUP) has a poor prognosis. Given the recent approval of immune checkpoint inhibitors for several cancer types, we carried out a multicenter phase II study to assess the efficacy of nivolumab for patients with CUP. PATIENTS AND METHODS Patients with CUP who were previously treated with at least one line of systemic chemotherapy constituted the principal study population. Previously untreated patients with CUP were also enrolled for exploratory analysis. Nivolumab (240 mg/body) was administered every 2 weeks for up to 52 cycles. The primary endpoint was objective response rate in previously treated patients as determined by blinded independent central review according to RECIST version 1.1. RESULTS Fifty-six patients with CUP were enrolled in the trial. For the 45 previously treated patients, objective response rate was 22.2% [95% confidence interval (CI), 11.2% to 37.1%], with a median progression-free survival and overall survival of 4.0 months (95% CI, 1.9-5.8 months) and 15.9 months (95% CI, 8.4-21.5 months), respectively. Similar clinical benefits were also observed in the 11 previously untreated patients. Better clinical efficacy of nivolumab was apparent for tumors with a higher programmed death-ligand 1 expression level, for those with a higher tumor mutation burden, and for microsatellite instability-high tumors. In contrast, no differences in efficacy were apparent between tumor subgroups based on estimated tissue of origin. Adverse events were consistent with the known safety profile of nivolumab. No treatment-related death was observed. CONCLUSIONS Our results demonstrate a clinical benefit of nivolumab for patients with CUP, suggesting that nivolumab is a potential additional therapeutic option for CUP.
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Affiliation(s)
- J Tanizaki
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Yonemori
- Department of Breast and Medical Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - K Akiyoshi
- Department of Medical Oncology, Osaka City General Hospital, Osaka, Japan
| | - H Minami
- Medical Oncology/Hematology, Department of Medicine, Kobe University Hospital and Graduate School of Medicine, Kobe, Japan
| | - H Ueda
- Respiratory Medicine and Medical Oncology, Wakayama Medical University, Wakayama, Japan
| | - Y Takiguchi
- Department of Medical Oncology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Y Miura
- Department of Medical Oncology, Toranomon Hospital, Tokyo, Japan
| | - Y Segawa
- Department of Medical Oncology, International Medical Center, Saitama Medical University, Hidaka, Japan
| | - S Takahashi
- Department of Medical Oncology, Tohoku University Hospital, Sendai, Japan
| | - Y Iwamoto
- Department of Medical Oncology, Hiroshima City Hospital Organization, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Y Kidera
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - K Fukuoka
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - A Ito
- Department ofPathology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - Y Chiba
- Clinical Research Center, Kindai University Hospital, Osakasayama, Japan
| | - K Sakai
- Department of Genome Biology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Nishio
- Department of Genome Biology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - K Nakagawa
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan
| | - H Hayashi
- Department of Medical Oncology, Kindai University Faculty of Medicine, Osakasayama, Japan.
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Hayashi H, Oda S, Kidoh M, Jyo A, Kobayashi N, Okada Y, Matsubara S, Ueda M, Hirai T. Multiparametric Cardiac Magnetic Resonance Imaging of Cardiac Involvement Associated With Sporadic Inclusion Body Myositis. Circ Cardiovasc Imaging 2021; 14:1155-1156. [PMID: 34809443 DOI: 10.1161/circimaging.121.013440] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hidetaka Hayashi
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Seitaro Oda
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Masafumi Kidoh
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Aki Jyo
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Naoki Kobayashi
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Yujiro Okada
- Department of Neurology (Y.O., S.M., M.U.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Soichiro Matsubara
- Department of Neurology (Y.O., S.M., M.U.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Mitsuharu Ueda
- Department of Neurology (Y.O., S.M., M.U.), Faculty of Life Sciences, Kumamoto University, Japan
| | - Toshinori Hirai
- Department of Diagnostic Radiology (H.H., S.O., M.K., A.J., N.K., T.H.), Faculty of Life Sciences, Kumamoto University, Japan
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Yamamoto N, Nakano M, Hayashi H, Hasebe Y, Ueda N, Noda T, Kusano K, Yasuda S. Predictive value of QRS duration normalized to left ventricular volume for responding to cardiac resynchronization therapy in patients with mid-QRS duration enrolled in the multicenter registry. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.0401] [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: 11/12/2022] Open
Abstract
Abstract
Background
For cardiac resynchronization therapy (CRT), patients with chronic heart failure (HF) and wide (>150msec) QRS duration (QRSd) received class I/A indication. However, its beneficial effect seemed to be limited for those with mid- (120–150msec) QRSd. Recent studies demonstrated that QRSd normalized to left ventricular end-diastolic volume (QRSd/ LVEDV) improved prediction of clinical outcome in patients with CRT. Therefore, we sought to investigate predictive value of QRSd/LVEDV for responding to CRT in patients with mid-QRSd.
Methods
This was retrospective multi-center observational cohort study. A total 506 consecutive patients who underwent CRT implantation in Tohoku University Hospital and National Cerebral and Cardiovascular Center were evaluated. Exclusion criteria were QRSd less than 120ms, upgrade procedures from other implanted non-CRT devices and bradycardia requiring pacing. We evaluated clinical variables, data of electrocardiogram and transthoracic echocardiography at baseline and 6 months after CRT implantation. Primary endpoint was a HF hospitalization after CRT implantation. Distribution of free from HF hospitalization during follow-up was calculated using Kaplan-Meier curves, and the effects of covariate on the time to endpoint were investigated using a Cox proportional hazards model.
Results
After 199 patients were excluded based on exclusion criterion, remaining 307 patients were included for the analysis. Mean age was 62±14 [SD] years, and 238 (77%) were male. Mean LVEF and LVEDV were 25±9% and 234±82ml, respectively, and 24% of patients had ischemic etiology of HF. During the median 948 days of follow-up, CRT patients with mid QRSd (n=126; 136±10msec), as compared with those with wide QRSd (n=181; 174±17msec), tended to have higher incidence of HF hospitalization (Wilcoxon p=0.03). Multivariate analysis showed that QRSd and QRSd/LVEDV were significant predictors for HF hospitalization in CRT patients with mid QRSd, and cut-off values (137msec of QRSd and 0.65 of QRSd/LVEDV), which was calculated by receiver operative curve analysis, was used for risk stratification. QRSd<137msec was significant negative predictors for HF hospitalization (p=0.005), and Mid-QRSd patients with QRSd≥137msec demonstrated equivalent clinical outcome with those with wide QRSd. Moreover, patients with QRSd/LVEDV≥0.65 tended to have lower incidence of HF hospitalization as compared with those without it among patients with QRSd<137msec (n=64, Figure).
Conclusion
The present study demonstrates that QRSd normalized to left ventricular end-diastolic volume (QRSd/ LVEDV) could be clinical value in predicting outcome in CRT patients with mid-QRSd. These findings indicate normalized QRSd reflects myocardial conduction properties and contribute to risk stratification.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- N Yamamoto
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - M Nakano
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - H Hayashi
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Y Hasebe
- Tohoku University Graduate School of Medicine, Sendai, Japan
| | - N Ueda
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - T Noda
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - K Kusano
- National Cerebral & Cardiovascular Center, Suita, Japan
| | - S Yasuda
- Tohoku University Graduate School of Medicine, Sendai, Japan
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Hayashi H. ES04.02 Antibody Drug Conjugates for Non-small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.741] [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: 10/20/2022]
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Kenmotsu H, Wakuda K, Mori K, Kato T, Sugawara S, Kirita K, Okamoto I, Azuma K, Nishino K, Teraoka S, Koyama R, Masuda K, Hayashi H, Toyozawa R, Miura S, Sato Y, Nakagawa K, Yamamoto N, Takahashi T. LBA44 Primary results of a randomized phase II study of osimertinib plus bevacizumab versus osimertinib monotherapy for untreated patients with non-squamous non-small cell lung cancer harboring EGFR mutations: WJOG9717L study. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.2123] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Solomon B, Mok T, Hayashi H, Bearz A, Penkov K, Wu YL, Arrieta O, Calella A, Peltz G, Polli A, Thurm H, Bauer T. 1199P Dose modification for the management of CNS adverse events in the phase III CROWN study of lorlatinib in non-small cell lung cancer (NSCLC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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40
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Zhou Q, Kim H, Soo R, Chang GC, Chiu CH, Hayashi H, Kim SW, Teraoka S, Goto Y, Zhou J, Lee V, Han B, Ho J, Kim DW, Lin CC, Lu S, Polli A, Calella A, Mok T, Wu YL. 1197P First-line lorlatinib versus crizotinib in ALK-positive non-small cell lung cancer: Asian subgroup analysis of CROWN. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1802] [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: 10/20/2022] Open
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41
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Mata AJ, Hayashi H, Moreno PA, Dudley RI, Sorenson EA. Hip Flexion Angles During Supine Range of Motion and Bodyweight Squats. Int J Exerc Sci 2021; 14:912-918. [PMID: 34567352 PMCID: PMC8439674] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
During the lowering phase of a squat, it has been observed that a posterior pelvic tilt (PPT) may occur when squatting to full depth. Research suggests that defaulting to compensatory movement strategies, such as PPT, during the squat may correlate with risk of lower extremity and trunk pathology. The purpose of this study was to examine hip flexion (HF) angles at the point when PPT occurs among three conditions: standard squats, heel raise squats, and supine passive HF; analyzing the differences in depth between standard and heel raise squats; and calculating differences in knee angles and ankle excursion between standard and heel raise squats. 28 participants performed bodyweight squats and underwent supine passive HF while outfitted with 32 retroreflective motion capture markers. Hip, knee, and ankle joint angles were extracted at the point of PPT. A one-way repeated measures ANOVA was used to determine differences in hip joint angles between conditions, and a paired sample t-test was used to compare knee angles, ankle excursion, and squat depth between standard and heel raise squats. HF angles at PPT remained unchanged across all conditions. However, significantly greater knee flexion, ankle excursion, and squat depth were observed in the heel raise squats compared to the standard squats. Results suggest that PPT is a compensatory movement that occurs as the femur compresses into the acetabulum once hip flexion has been exhausted.
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Affiliation(s)
- Angeli J Mata
- Department of Kinesiology, Azusa Pacific University, Azusa, CA, USA
| | - Hidetaka Hayashi
- Department of Kinesiology, Azusa Pacific University, Azusa, CA, USA
| | - Phillip A Moreno
- Department of Kinesiology, Azusa Pacific University, Azusa, CA, USA
| | - Robert I Dudley
- Department of Kinesiology, Azusa Pacific University, Azusa, CA, USA
| | - Eric A Sorenson
- Department of Kinesiology, Azusa Pacific University, Azusa, CA, USA
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Notake T, Shimizu A, Kubota K, Ikehara T, Hayashi H, Yasukawa K, Kobayashi A, Yamada A, Fujinaga Y, Soejima Y. Hepatocellular uptake index obtained with gadoxetate disodium-enhanced magnetic resonance imaging in the assessment future liver remnant function after major hepatectomy for biliary malignancy. BJS Open 2021; 5:6319789. [PMID: 34254117 PMCID: PMC8275880 DOI: 10.1093/bjsopen/zraa048] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 08/23/2020] [Accepted: 11/06/2020] [Indexed: 12/19/2022] Open
Abstract
Background Functional assessment of the future liver remnant (FLR) after major hepatectomy is essential but often difficult in patients with biliary malignancy, owing to obstructive jaundice and portal vein embolization. This study evaluated whether a novel index using gadoxetate disodium-enhanced MRI (EOB-MRI) could predict posthepatectomy liver failure (PHLF) after major hepatectomy for biliary malignancy. Methods The remnant hepatocellular uptake index (rHUI) was calculated in patients undergoing EOB-MRI before major hepatectomy for biliary malignancy. Receiver operating characteristic (ROC) curve analyses were used to evaluate the accuracy of rHUI for predicting PHLF grade B or C, according to International Study Group of Liver Surgery criteria. Multivariable logistic regression analyses comprised stepwise selection of parameters, including rHUI and other conventional indices. Results This study included 67 patients. The rHUI accurately predicted PHLF (area under the curve (AUC) 0.896). A cut-off value for rHUI of less than 0.410 predicted all patients who developed grade B or C PHLF. In multivariable analysis, only rHUI was an independent risk factor for grade B or C PHLF (odds ratio 2.0 × 103, 95 per cent c.i. 19.6 to 3.8 × 107; P < 0.001). In patients who underwent preoperative portal vein embolization, rHUI accurately predicted PHLF (AUC 0.885), whereas other conventional indices, such as the plasma disappearance rate of indocyanine green of the FLR and FLR volume, did not. Conclusion The rHUI is potentially a useful predictor of PHLF after major hepatectomy for biliary malignancy.
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Affiliation(s)
- T Notake
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - A Shimizu
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Kubota
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - T Ikehara
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - H Hayashi
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - K Yasukawa
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - A Kobayashi
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - A Yamada
- Department of Radiology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Fujinaga
- Department of Radiology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Y Soejima
- Division of Gastroenterological, Hepato-Biliary-Pancreatic, Transplantation and Paediatric Surgery, Department of Surgery, Shinshu University School of Medicine, Matsumoto, Japan
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Nakaoka Y, Yanagawa M, Hata A, Yamashita K, Okada N, Yamakido S, Hayashi H, Jayne D. POS0340 VASCULAR IMAGING IN PATIENTS WITH REFRACTORY TAKAYASU ARTERITIS TREATED WITH TOCILIZUMAB: ANALYSIS FROM A RANDOMIZED CONTROLLED TRIAL. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.2768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:In the TAKT study, a randomized controlled trial of tocilizumab (TCZ) in patients with refractory Takayasu arteritis (TAK) in Japan, the primary end point of time to relapse after induction of remission with glucocorticoid (GC) treatment showed a trend favoring TCZ over placebo (hazard ratio 0.41 [95.41% confidence interval, 0.15-1.10; p=0.0596]),1 but the double-blind period was too short for imaging evaluation.Objectives:To independently evaluate vascular imaging in a post hoc analysis of radiographs from the TAKT study.Methods:Computed tomography images from patients in the TAKT study were evaluated by three independent radiologists who were not involved in the original trial. Patients who received TCZ and had computed tomography images available (n=28) were included. Assessments were made in 22 arteries for the change from baseline in wall thickness (primary end point), dilatation/aneurysm, stenosis/occlusion, or wall enhancement for at least 96 weeks after the start of tocilizumab treatment. Patient-level assessments were also conducted.Results:Among 28 patients who received at least one dose of TCZ and for whom images were available, 86.7% of 22 arteries had improved/stable (no progression) wall thickness at week 96. The proportions of patients with no progressed, partially progressed, or newly progressed lesions were 57.1%, 10.7%, and 28.6% for wall thickness, and the proportions without progressed lesions were 92.9% for dilatation/aneurysm and 85.7% for stenosis/occlusion (Figure 1). Patients with newly progressed lesions, reflecting more refractory disease, were receiving glucocorticoid doses that could not be reduced below 0.1 mg/kg/day at week 96.Conclusion:Approximately 60% of patients with TAK treated with tocilizumab did not experience progression in wall thickness. Few patients experienced progressive dilatation/aneurysm or stenosis/occlusion. Wall thickness progression likely resulted from refractory TAK. Patients who experience this should be monitored regularly by imaging, and additional glucocorticoid or immunosuppressive treatment should be considered to avoid vascular progression.References:[1]Nakaoka Y et al. Ann Rheum Dis. 2018;77:348-354.Disclosure of Interests:Yoshikazu Nakaoka Consultant of: Roche/Genentech, Grant/research support from: Roche/Genentech, Masahiro Yanagawa Consultant of: Roche/Genentech, Akinori Hata Consultant of: Roche/Genentech, Katsuhisa Yamashita Employee of: Chugai Pharmaceutical Co., Ltd., Norihiro Okada Employee of: Chugai Pharmaceutical Co., Ltd., Shinji Yamakido Employee of: Chugai Pharmaceutical Co., Ltd., Hiromitsu Hayashi Consultant of: Roche/Genentech, David Jayne Consultant of: Roche/Genentech, Grant/research support from: Roche/Genentech
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Yu H, Baik C, Gold K, Hayashi H, Johnson M, Koczywas M, Murakami H, Nishio M, Steuer C, Su W, Yang J, Karam S, Qi Z, Qiu Y, Chen S, Yu C, Janne P. OA03.04 Efficacy and Safety of the Novel HER3 Directed Antibody Drug Conjugate Patritumab Deruxtecan (HER3-DXd; U3-1402) in EGFR-mutated NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.281] [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: 11/26/2022]
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Lee J, Tan A, Zhou S, Liu S, Kim D, Masuda K, Batra U, Hayashi H, Goto Y, Tan S, Wu Y, Tan D, Ahn M. MA04.06 Clinical Characteristics and Outcomes in Advanced KRAS Mutant NSCLC – A Multi-Centre Collaboration in Asia (ATORG-005). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.227] [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: 11/28/2022]
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Hayashi H, Yonesaka K, Sugawara S, Sato Y, Azuma K, Sakata S, Tachihara M, Ikeda S, Yokoyama T, Hataji O, Yano Y, Hirano K, Daga H, Okada H, Sakai K, Chiba Y, Nishio K, Yamamoto N, Nakagawa K. FP14.16 Phase 2 Trial of the Alternating Therapy with Osimertinib and Afatinib for Treatment-Naive Patients with EGFR-Mutated Advanced Non–Small Cell Lung Cancer (WJOG10818L/Alt Trial). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.159] [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: 11/17/2022]
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Noguchi T, Hayashi T, Kubo Y, Tomiyama N, Ochi A, Hayashi H. Association between Decreased Social Participation and Depressive Symptom Onset among Community-Dwelling Older Adults: A Longitudinal Study during the COVID-19 Pandemic. J Nutr Health Aging 2021; 25:1070-1075. [PMID: 34725663 PMCID: PMC8440728 DOI: 10.1007/s12603-021-1674-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 07/22/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The coronavirus disease (COVID-19) pandemic has imposed restrictions on people's social behavior. However, there is limited evidence regarding the relationship between changes in social participation and depressive symptom onset among older adults during the pandemic. We examined the association between changes in social participation and the onset of depressive symptoms among community-dwelling older adults during the COVID-19 pandemic. DESIGN This was a longitudinal study. SETTING Communities in Minokamo City, a semi-urban area in Japan. PARTICIPANTS We recruited community-dwelling older adults aged ≥ 65 years using random sampling. Participants completed a questionnaire survey at baseline (March 2020) and follow-up (October 2020). MEASUREMENTS Depressive symptoms were assessed using the Two-Question Screen. Based on their social participation status in March and October 2020, participants were classified into four groups: "continued participation," "decreased participation," "increased participation," and "consistent non-participation." RESULTS A total of 597 older adults without depressive symptoms at baseline were analyzed (mean age = 79.8 years; 50.4% females). Depressive symptoms occurred in 20.1% of the participants during the observation period. Multivariable Poisson regression analysis showed that decreased social participation was significantly associated with the onset of the depressive symptoms, compared to continued participation, after adjusting for all covariates (incidence rate ratio = 1.59, 95% confidence interval = 1.01-2.50, p = 0.045). CONCLUSION Older adults with decreased social participation during the COVID-19 pandemic demonstrated a high risk of developing depressive symptoms. We recommend that resuming community activities and promoting the participation of older adults, with sufficient consideration for infection prevention, are needed to maintain mental health among older adults.
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Affiliation(s)
- T Noguchi
- Taiji Noguchi, Department of Social Science, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi, 474-8511, Japan, Tel: +81-562-46-2311, E-mail:
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Onaga T, Sakai A, Kajita M, Fukuda H, Yasui Y, Hayashi H. Messenger RNA expression and localization of xenin in the gastrointestinal tract in sheep. Domest Anim Endocrinol 2021; 74:106523. [PMID: 32795864 DOI: 10.1016/j.domaniend.2020.106523] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/27/2020] [Accepted: 07/10/2020] [Indexed: 10/23/2022]
Abstract
The present study aimed to determine the primary sequence of ovine xenin and clarify the mRNA expression and peptide localization of xenin in the gastrointestinal tract in sheep. The colocalization of xenin and glucose-dependent insulinotropic polypeptide was also compared in the antrum and duodenum. Analysis of the nucleotide sequence of ovine xenin revealed a high degree (97.9%) of sequence homology of the sequence between sheep and cattle, and the amino acids sequence determined for ovine xenin coincided (100%) with that of other mammalian species. Real-time quantitative PCR for ovine xenin did not show regional difference in the mRNA expression ratio of xenin. In contrast to the real-time quantitative PCR results, anti-xenin positive cells were abundantly localized in the abomasal antrum (P < 0.01) and at a lesser amount in the duodenum, but no antixenin positive cells were observed in the other regions. Anti-xenin single-positive cells were in a majority in the abomasal antrum, whereas anti-xenin single-positive cells, and anti-GIP single-positive cells, and double-positive cells were even colocalized in the duodenum. These results suggest that abomasal antrum is a major source of xenin in the ovine gastrointestinal tract.
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Affiliation(s)
- T Onaga
- Laboratory of Veterinary Physiology and Nutrition, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan.
| | - A Sakai
- Laboratory of Veterinary Physiology and Nutrition, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - M Kajita
- Laboratory of Veterinary Physiology and Nutrition, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - H Fukuda
- Laboratory of Veterinary Physiology and Nutrition, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - Y Yasui
- Laboratory of Veterinary Physiology and Nutrition, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
| | - H Hayashi
- Laboratory of Veterinary Physiology, Division of Biosciences, Department of Veterinary Medicine, School of Veterinary Medicine, Rakuno Gakuen University, 582 Bunkyodai-Midorimachi, Ebetsu, Hokkaido, 069-8501, Japan
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Shiozawa T, Shimada K, Lee-Okada H, Kadoguchi T, Aikawa T, Hayashi H, Miyazaki T, Matsushita S, Suwa S, Yokomizo T, Amano A, Nakazato Y, Daida H. Levels of phospholipids and triacylglycerol-containing omega 3 fatty acids in myocardial tissue of patients with myocardial infarction: analyzed by a lipidomics profiling method. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2993] [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: 11/12/2022] Open
Abstract
Abstract
Objective
According to population-based studies, low omega 3 fatty acid (omega3FA) intake and high levels of serum triacylglycerol (TAG) are associated with cardiovascular diseases. Recent advances in mass spectrometry allow molecular lipid (lipidomics) profiling, which may enhance cardiovascular risk prediction. In this study, we assessed the levels of omega3FA-containing phospholipids (PL) and TAG in myocardial tissues of patients with and without myocardial infarction (MI) using a lipidomics profiling method.
Methods
We performed lipidomics profiling of human left atrial appendage (LAA) tissue of 29 consecutive patients receiving off-pump coronary bypass surgery with standard LAA resection. The patients were divided into the MI group (n=7) and an age- and gender-matched non-MI group (n=7).
Results
Lipidomics profiling revealed that the MI group tended to have low levels of phosphatidylcholines (PC), phosphatidylethanolamine (PE), lysophosphatidylethanolamine (LPE), and plasmalogen, and high levels of TAG species. Individual molecular species containing omega3FA, such as PC (18:0/20:5; 3,200±1,200 vs. 4,500±910 pmol/g tissue, p=0.04) and plasmalogen (18:1/20:5; 57,000±21,000 vs. 91,000±28,000 pmol/g tissue, p=0.02), were significantly lower in the MI group than in the non-MI group.
Conclusions
To our knowledge, this is the first study to determine the levels of omega3FA-containing PL and TAG in myocardial tissue using lipidomics profiling. We discovered that lower levels of omega3FA-containing PL and higher levels of TAG existed in myocardial tissues of patients with MI than in those of patients without MI. Accordingly, the lipidomics profiling method for human myocardial tissue may be useful for developing therapy targets for cardiovascular diseases.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): MEXT/JSPS KAKENHI Grant
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Affiliation(s)
- T Shiozawa
- Juntendo University Shizuoka Hospital, Department of Cardiology, Shizuoka, Japan
| | - K Shimada
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Lee-Okada
- Juntendo University School of Medicine, Department of Biochemistry, Tokyo, Japan
| | - T Kadoguchi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Aikawa
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - H Hayashi
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
| | - T Miyazaki
- Juntendo University Urayasu Hospital, Department of Cardiology, Chiba, Japan
| | - S Matsushita
- Juntendo University School of Medicine, Department of Cardiovascular Surgery, Tokyo, Japan
| | - S Suwa
- Juntendo University Shizuoka Hospital, Department of Cardiology, Shizuoka, Japan
| | - T Yokomizo
- Juntendo University School of Medicine, Department of Biochemistry, Tokyo, Japan
| | - A Amano
- Juntendo University School of Medicine, Department of Cardiovascular Surgery, Tokyo, Japan
| | - Y Nakazato
- Juntendo University Urayasu Hospital, Department of Cardiology, Chiba, Japan
| | - H Daida
- Juntendo University Graduate School of Medicine, Department of Cardiovascular Medicine, Tokyo, Japan
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Hayashi H, Kataoka Y, Hosoda H, Nakashima T, Honda S, Fujino M, Nakao K, Yoneda S, Otsuka F, Asaumi Y, Noguchi T, Izumiya Y, Yoshiyama M, Yasuda S. Characterization of thromboembolic and bleeding risks in cancer patients with acute myocardial infarction under the use of guideline-recommended dual-antiplatelet therapy. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1537] [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
Atherosclerotic cardiovascular disease including acute myocardial infarction (AMI) has become one of major co-existing diseases in cancer patients due to their improved survival rate. Current guideline recommends dual-antiplatelet therapy (DAPT) in patients with AMI. Given that the presence of cancer elevates not only coagulability but bleeding risks, these substrate may further worsen cardiovascular outcomes and bleeding risks in cancer subjects with AMI receiving DAPT.
Methods
We retrospectively analyzed 712 AMI patients treated by primary PCI with drug-eluting stent and DAPT between 2007 and 2017. The diagnosis of cancer was determined through medical record review. Clinical characteristics, thromboembolic (=all-cause death+non-fatal MI+stroke) and bleeding events were compared in AMI subjects with vs. without cancer.
Results
Cancer was identified in 11.1% (=79/712) of study subjects. Of these, around 40% of them had gastrointestinal cancer (=35/79), followed by lung cancer (=5/79) and breast cancer (=8/79). Cancer patients were more likely to be older (77±7 v. 69±13 years, p<0.001) with a history of Af (25 v. 10%, p<0.001), CKD (eGFR<60: 60 v. 42%, p=0.002), anemia (hemoglobin: 12.8±1.8 v. 13.9±1.8 g/dl, p<0.001). Under anti-thrombotic (DAPT=86%, triple-antiplatelet therapy=14%) and optimal medical therapies (ACE-I=90%, beta-blocker=76%, statin=96%), more frequent occurrence of thromboembolic events was observed in patients with cancer (34.2 v. 12.6%, p=0.004, Picture). Furthermore, the presence of cancer was associated with more than four times greater risk of bleeding events compared to non-cancer subjects (18.9 v. 4.3%, p<0.001, Picture). In particular, the frequency of both major (10.1 vs. 3.3%, p=0.003) and minor (8.9 vs. 0.9%, p<0.001) bleeding events was significantly higher in patients with cancer. In multivariate analysis, cancer independently predicted bleeding events (Table).
Conclusions
Under the use of guideline recommended DAPT, the concomitance of cancer in AMI subjects was a predictor for thromboembolic as well as bleeding events. In particular, the relationship between cancer and bleeding was significant. These observations underscore the appropriate selection and duration of anti-thrombotic agents in AMI subjects with cancer.
Cardiac/Bleeding Events in AMI Subjects
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- H Hayashi
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Y Kataoka
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - H Hosoda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - T Nakashima
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - S Honda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - M Fujino
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - K Nakao
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - S Yoneda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - F Otsuka
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - Y Asaumi
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - T Noguchi
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
| | - Y Izumiya
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - M Yoshiyama
- Osaka City University Graduate School of Medicine, Osaka, Japan
| | - S Yasuda
- National Cerebral and Cardiovascular Center, Department of Cardiovascular Medicine, Osaka, Japan
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