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Mori N, Li L, Matsuda M, Mori Y, Mugikura S. Prospects of perfusion contrast-enhanced ultrasound (CE-US) in diagnosing axillary lymph node metastases in breast cancer: a comparison with lymphatic CE-US. J Med Ultrason (2001) 2024:10.1007/s10396-024-01444-w. [PMID: 38642268 DOI: 10.1007/s10396-024-01444-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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/18/2024] [Indexed: 04/22/2024]
Abstract
Accurate diagnosis of lymph node (LN) metastasis is vital for prognosis and treatment in patients with breast cancer. Imaging 1modalities such as ultrasound (US), MRI, CT, and 18F-FDG PET/CT are used for preoperative assessment. While conventional US is commonly recommended due to its resolution and sensitivity, it has limitations such as operator subjectivity and difficulty detecting small metastases. This review shows the microanatomy of axillary LNs to enhance accurate diagnosis and the characteristics of contrast-enhanced US (CE-US), which utilizes intravascular microbubble contrast agents, making it ideal for vascular imaging. A significant focus of this review is on distinguishing between two types of CE-US techniques for axillary LN evaluation: perfusion CE-US and lymphatic CE-US. Perfusion CE-US is used to assess LN metastasis via transvenous contrast agent administration, while lymphatic CE-US is used to identify sentinel LNs and diagnose LN metastasis through percutaneous contrast agent administration. This review also highlights the need for future research to clarify the distinction between studies involving "apparently enlarged LNs" and "clinical node-negative" cases in perfusion CE-US research. Such research standardization is essential to ensure accurate diagnostic performance in various clinical studies. Future studies should aim to standardize CE-US methods for improved LN metastasis diagnosis, not only in breast cancer but also across various malignancies.
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Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
| | - Li Li
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
| | - Masazumi Matsuda
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8574, Japan
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
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Cornelius JM, Vernasco BJ, Mori N, Watts HE. Response to food restriction, but not social information use, varies seasonally in captive cardueline finches. Integr Comp Biol 2024:icae016. [PMID: 38609338 DOI: 10.1093/icb/icae016] [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: 04/14/2024] Open
Abstract
For songbirds, temperate winters can impose severe conditions on songbirds that threaten survival, including shorter days and often lower temperature and food availability. One well-studied mechanism by which songbirds cope with such conditions is seasonal acclimatization of thermal metabolic traits, with strong evidence for both preparative and responsive changes in thermogenic capacity (i.e., the ability to generate heat) to low winter temperature. However, a bird's ability to cope with seasonal extremes or unpredictable events is likely dependent on a combination of behavioral and physiological traits that function to maintain allostatic balance. The ability to cope with reduced food availability may be an important component of organismal response to temperate winters in songbirds. Here we compare responses to experimentally reduced food availability at different times of year in captive red crossbills (Loxia curvirostra) and pine siskins (Spinus pinus) - two species that cope with variable food resources and live in cold places - to investigate seasonal changes in the organismal response to food availability. Further, red crossbills are known to use social information to improve response to reduced food availability, so we also examine whether use of social information in this context varies seasonally in this species. We find that pine siskins and red crossbills lose less body mass during time-restricted feedings in late winter compared to summer, and that red crossbills further benefit from social information gathered from observing other food restricted red crossbills in both seasons. Observed changes in body mass were only partially explained by seasonal differences in food intake. Our results demonstrate seasonal acclimation to food stress and social information use across seasons in a controlled captive environment and highlight the importance of considering diverse physiological systems (e.g., thermogenic, metabolic, digestive, etc) to understand organismal responses to environmental challenges.
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Affiliation(s)
- J M Cornelius
- Department of Integrative Biology, 4575 SW Research Way, Oregon State University, Corvallis, OR 97333
| | - B J Vernasco
- School of Biological Sciences, Washington State University, Pullman, WA
- Department of Biology, Whitman College, Walla Walla, WA, USA
| | - N Mori
- Department of Integrative Biology, 4575 SW Research Way, Oregon State University, Corvallis, OR 97333
| | - H E Watts
- School of Biological Sciences, Washington State University, Pullman, WA
- Center for Reproductive Biology, Washington State University, Pullman, WA
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Mori N. Dynamic contrast-enhanced magnetic resonance imaging and diffusion-weighted imaging in predicting ductal carcinoma in situ upgrades. Clin Imaging 2024; 108:110091. [PMID: 38382418 DOI: 10.1016/j.clinimag.2024.110091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 01/10/2024] [Indexed: 02/23/2024]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan.
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Shimizu H, Mori N, Mugikura S, Maekawa Y, Miyashita M, Nagasaka T, Sato S, Takase K. Application of Texture and Volume Model Analysis to Dedicated Axillary High-resolution 3D T2-weighted MR Imaging: A Novel Method for Diagnosing Lymph Node Metastasis in Patients with Clinically Node-negative Breast Cancer. Magn Reson Med Sci 2024; 23:161-170. [PMID: 36858636 PMCID: PMC11024718 DOI: 10.2463/mrms.mp.2022-0091] [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: 08/04/2022] [Accepted: 01/23/2023] [Indexed: 03/03/2023] Open
Abstract
PURPOSE To evaluate the effectiveness of the texture analysis of axillary high-resolution 3D T2-weighted imaging (T2WI) in distinguishing positive and negative lymph node (LN) metastasis in patients with clinically node-negative breast cancer. METHODS Between December 2017 and May 2021, 242 consecutive patients underwent high-resolution 3D T2WI and were classified into the training (n = 160) and validation cohorts (n = 82). We performed manual 3D segmentation of all visible LNs in axillary level I to extract the texture features. As the additional parameters, the number of the LNs and the total volume of all LNs for each case were calculated. The least absolute shrinkage and selection operator algorithm and Random Forest were used to construct the models. We constructed the texture model using the features from the LN with the largest least axis length in the training cohort. Furthermore, we constructed the 3 models combining the selected texture features of the LN with the largest least axis length, the number of LNs, and the total volume of all LNs: texture-number model, texture-volume model, and texture-number-volume model. As a conventional method, we manually measured the largest cortical diameter. Moreover, we performed the receiver operating curve analysis in the validation cohort and compared area under the curves (AUCs) of the models. RESULTS The AUCs of the texture model, texture-number model, texture-volume model, texture-number-volume model, and conventional method in the validation cohort were 0.7677, 0.7403, 0.8129, 0.7448, and 0.6851, respectively. The AUC of the texture-volume model was higher than those of other models and conventional method. The sensitivity, specificity, positive predictive value, and negative predictive value of the texture-volume model were 90%, 69%, 49%, and 96%, respectively. CONCLUSION The texture-volume model of high-resolution 3D T2WI effectively distinguished positive and negative LN metastasis for patients with clinically node-negative breast cancer.
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Affiliation(s)
- Hiroaki Shimizu
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Tohoku University School of Medicine, Sendai, Miyagi, Japan
| | - Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Miyagi, Japan
| | - Yui Maekawa
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Minoru Miyashita
- Department of Surgical Oncology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Tatsuo Nagasaka
- Department of Radiological Technology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Satoko Sato
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Mori N. Longitudinal evaluation of MRI findings, including quantitative apparent diffusion coefficient values, might be necessary to predict disease progression in patients with prostate cancer on active surveillance. World J Urol 2024; 42:191. [PMID: 38530493 DOI: 10.1007/s00345-024-04932-3] [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: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/28/2024] Open
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1, Hondo, Akita, Akita, Japan.
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Monma S, Yano M, Matsuda M, Tseuchie H, Mori N. Chylothorax Associated with the Syndrome of Idiopathic Osteolysis Including Gorham-Stout Disease: Spontaneous Remission Without Treatment. Turk Arch Pediatr 2024; 59:230-231. [PMID: 38454236 DOI: 10.5152/turkarchpediatr.2024.23208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Affiliation(s)
- Sota Monma
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan, Akita University School of Medicine, Akita, Japan
| | - Michihiro Yano
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - Masazumi Matsuda
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Hiroyuki Tseuchie
- Department of Orthopedic Surgery, Akita University Graduate School of Medicine, Akita, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
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Deguchi N, Ishikawa K, Tokioka S, Kobayashi D, Mori N. Relationship between blood culture time to positivity, mortality rate, and severity of bacteremia. Infect Dis Now 2024; 54:104843. [PMID: 38043910 DOI: 10.1016/j.idnow.2023.104843] [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: 08/04/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 12/05/2023]
Abstract
OBJECTIVES We investigated the association between patient severity or mortality and time to positivity in bacteremia caused by various pathogens. PATIENTS AND METHODS This single-center retrospective study included patients with positive blood culture results. RESULTS Longer time to positivity was associated with 30-day mortality for Staphylococcus aureus (221 cases, time to positivity: 17.4 h in the 30-day mortality group vs. 14.1 h in the survival group). Age, chronic kidney disease, cerebrovascular disease, hypertensive drug use, consciousness disorder, and minimal systolic blood pressure were significant predictors of 30-day mortality. For S. aureus, mortality within 30 days was significantly higher when time to positivity was > 24 h (p = 0.04). The time to positivity of Streptococcus pneumoniae, α, β-hemolytic Streptococcus, Enterococcus sp., Enterobacteriaceae, glucose-nonfermenting Gram-negative rods, Candida sp., and anaerobe was not significantly associated with 30-day mortality. CONCLUSIONS Among various pathogens, time to positivity > 24 h was associated with 30-day mortality for S. aureus.
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Affiliation(s)
- N Deguchi
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan
| | - K Ishikawa
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan.
| | - S Tokioka
- Department of Cardiovascular Medicine, Sendai Medical Center, Sendai, Japan
| | - D Kobayashi
- Department of Primary Care and General Medicine Tokyo Medical University Ibaraki Medical Center, Japan
| | - N Mori
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan
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8
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Mori N. US Contrast Agents as Contrast Material That Remains Solely in Blood Vessels: Safety and Indications in Obstetrics and Gynecology. Radiographics 2024; 44:e240001. [PMID: 38421909 DOI: 10.1148/rg.240001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
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Mori N. Need for Contrast-enhanced MR Imaging Protocols and Quantitative Assessment of Wall Enhancement for Vessel Wall Imaging in Various Intracranial Arterial Diseases. Magn Reson Med Sci 2024:lte.2023-0173. [PMID: 38355107 DOI: 10.2463/mrms.lte.2023-0173] [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] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Akita, Japan
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10
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Mori Y, Mori N. Letter to the Editor From Mori and Mori: "Sequential Therapy for the Long-Term Treatment of Postmenopausal Osteoporosis". J Clin Endocrinol Metab 2024:dgae083. [PMID: 38335134 DOI: 10.1210/clinem/dgae083] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 02/08/2024] [Indexed: 02/12/2024]
Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-Ku, Sendai, Miyagi 980-8574, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-0825, Japan
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11
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Mori N. Percutaneous and intravenous contrast material injection in contrast-enhanced ultrasound for sentinel lymph node evaluation in patients with breast cancer: importance of discussing difference in purposes. Breast Cancer Res Treat 2024; 203:629-630. [PMID: 37923965 DOI: 10.1007/s10549-023-07166-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 10/22/2023] [Indexed: 11/06/2023]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
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Pan F, Mori N, Mugikura S, Ohta M, Anzai H. The influence of blood velocity and vessel geometric parameters on wall shear stress. Med Eng Phys 2024; 124:104112. [PMID: 38418022 DOI: 10.1016/j.medengphy.2024.104112] [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: 04/21/2023] [Revised: 11/16/2023] [Accepted: 01/18/2024] [Indexed: 03/01/2024]
Abstract
Vascular geometry was proposed to be one risk factor of atherosclerosis (AS). When developing this hypothesis, the discussion of geometry-wall shear stress (WSS) has often been included. However, further exploration on how various geometric parameters were affecting WSS was needed. The purpose of this study was to investigate the influence degree of vessel geometric parameters and blood velocity on WSS. A computational fluid dynamics (CFD) analyses of the vertebral and basilar arteries (VA and BA, respectively) was used. Twenty patients with no plaques or vessel wall thickening at the VA and BA were included. CFD analyses using both specific vessel models and flow conditions measured by ultrasound Doppler were performed. Subsequently, CFD results were post-processed with multiple linear regression to investigate numerical correlations between geometrical and flow parameters and WSS. The results of the multiple linear regression analysis further demonstrated that the BA proximal velocity was the most influential factor positively influencing BA WSS. The lower the WSS was, the stronger the influence brought by BA average diameter would be. The regression demonstrated that the contributions brought by average diameter and proximal velocity in lower WSS regions were lower than that in higher WSS regions. Tortuosity was only positively correlated with 97.5th WSS percentile, and vessel length and curvature showed no correlation with WSS. This study quantified the influence degree of BA morphology and flow velocity on WSS, which may have practical implications for predicting hemodynamic risks.
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Affiliation(s)
- Fangjia Pan
- Graduate school of Biomedical Engineering, Tohoku University, Sendai, Japan; Institute of Fluid Science, Tohoku University, Sendai, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Graduate School of Medicine, Tohoku University, Sendai, Japan; Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Makoto Ohta
- Institute of Fluid Science, Tohoku University, Sendai, Japan; ELyTMaX IRL3757, CNRS, Univ Lyon, INSA Lyon, Centrale Lyon, Tohoku University, Université Claude Bernard Lyon 1, Sendai, Japan
| | - Hitomi Anzai
- Institute of Fluid Science, Tohoku University, Sendai, Japan.
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Sugawara D, Matsuda M, Shirayama K, Satoh K, Asano T, Nakae H, Iijima K, Mori N. Guidelines for acute pancreatitis 2021 in Japan: reassurance of severity assessment using repeated dynamic contrast-enhanced CT including pancreatic parenchymal and portal venous phases. Jpn J Radiol 2024:10.1007/s11604-024-01532-4. [PMID: 38263323 DOI: 10.1007/s11604-024-01532-4] [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: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/25/2024]
Affiliation(s)
- Daichi Sugawara
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Masazumi Matsuda
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Koudai Shirayama
- Division of Gastroenterology, Hepato-Biliary-Pancreatology and Neurology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Kasumi Satoh
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Tomoyuki Asano
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Katsunori Iijima
- Division of Gastroenterology, Hepato-Biliary-Pancreatology and Neurology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
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Hayase T, Mieno MN, Mori N, Yuza Y, Sano H, Osone S, Hasegawa D, Ashiarai M, Fukushima K. Inter-reporter differences in symptom burdens in Japanese children with cancer. Pediatr Int 2024; 66:e15729. [PMID: 38409898 DOI: 10.1111/ped.15729] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 02/28/2024]
Abstract
BACKGROUND Recent studies about inter-reporter differences and patient-reported outcomes (PROs) in childhood cancer from Western countries showed that caregiver proxy reports tend to overestimate symptom burdens in comparison with children's self-reports. However, the results from Western countries may not be generalizable to Asian countries. METHODS This paper is a secondary analysis of a validation study of the Japanese pediatric version of the Memorial Symptom Assessment Scale including 88 dyads of children aged 7-12 years and 74 dyads of children aged 13-18 years and their caregivers. The study assessed the inter-reporter differences of eight and 31 symptom burdens calculated as symptom scores in children aged 7-12 years and 13-18 years, respectively, and the association between inter-reporter differences and the characteristics of children and caregivers. RESULTS The majority of children and caregivers scored equally at the dyadic level for almost all symptoms. However, 37.5% of symptoms in children aged 7-12 years and 10.0% of symptoms in children aged 13-18 years showed significant inter-reporter differences, suggesting a general tendency of caregivers to underestimate their children's symptom burden. The caregiver's age was the characteristic most frequently associated with magnitude of inter-reporter differences. CONCLUSIONS Caregiver proxy reports may be a reliable source of PROs in Japanese children with cancer, as self-reported and caregiver proxy-reported symptom burdens were generally concordant. However, as some significant inter-reporter differences were observed, an effort should be made within the medical community to evaluate the parent-child relationship to minimize inter-reporter differences and achieve better symptom management.
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Affiliation(s)
- Tomomi Hayase
- Department of Palliative Medicine, Kobe University Hospital, Kobe, Japan
| | - Makiko Naka Mieno
- Department of Medical Informatics, Center for Information, Jichi Medical University, Shimotsuke, Japan
| | - Naoko Mori
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Yuki Yuza
- Department of Hematology/Oncology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Hirozumi Sano
- Department of Pediatrics, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Shinya Osone
- Department of Pediatrics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Daiichiro Hasegawa
- Department of Hematology and Oncology, Hyogo Prefectural Kobe Children's Hospital, Kobe, Japan
| | - Miho Ashiarai
- Department of Pediatrics, St. Luke's International Hospital, Tokyo, Japan
| | - Keitaro Fukushima
- Department of Pediatrics, Dokkyo Medical University School of Medicine, Japan
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Matsuda M, Murata T, Otani T, Yoshida K, Sanpei Y, Iijima K, Nakae H, Mori N. Potential of arterial spin labeling in elucidating the pathogenesis of the splenium of the corpus callosum and cerebellar dentate nucleus in encephalopathy. Brain Dev 2024; 46:73-74. [PMID: 37872077 DOI: 10.1016/j.braindev.2023.10.001] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/25/2023]
Affiliation(s)
- Masazumi Matsuda
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Toshiki Murata
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Takahiro Otani
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Kenji Yoshida
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Yui Sanpei
- Division of Gastroenterology, Hepato-biliary-pancreatology and Neurology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Katsunori Iijima
- Division of Gastroenterology, Hepato-biliary-pancreatology and Neurology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Hajime Nakae
- Department of Emergency and Critical Care Medicine, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan.
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
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Mori Y, Izumiyama T, Otsuka K, Kanabuchi R, Yamamoto J, Sekine M, Mori N, Asano Y, Aizawa T. Pyoderma gangrenosum after surgery for forefoot deformity in a patient with rheumatoid arthritis: A case report. Mod Rheumatol Case Rep 2023; 8:11-15. [PMID: 37638693 DOI: 10.1093/mrcr/rxad051] [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: 06/30/2023] [Revised: 07/29/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023]
Abstract
Pyoderma gangrenosum (PG) is a rare inflammatory skin disease characterised by skin ulcers that are associated with autoimmune diseases. Although the effectiveness of immunosuppression with glucocorticoids and tumour necrosis factor inhibitors in treating PG has been reported, the utility of negative-pressure wound therapy (NPWT) for severe ulcerative lesions in patients with PG remains controversial. Herein, we report the case of a 76-year-old woman with rheumatoid arthritis who developed PG after undergoing surgery for a forefoot deformity. The patient showed improvement in deep ulcer lesions through NPWT while receiving treatment with abatacept and systemic glucocorticoids. Subsequent topical glucocorticoid therapy led to the remission of the PG. This case suggests that NPWT, when used under immunosuppressive conditions, does not exacerbate the pathergy and may be beneficial for treating severe ulcerative PG.
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Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuya Izumiyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kazuaki Otsuka
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryuichi Kanabuchi
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Jun Yamamoto
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mana Sekine
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Yoshihide Asano
- Department of Dermatology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
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17
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Mori Y, Izumiyama T, Kanabuchi R, Mori N, Aizawa T. Large language model may assist diagnosis of SAPHO syndrome by bone scintigraphy. Mod Rheumatol 2023:road115. [PMID: 38153762 DOI: 10.1093/mr/road115] [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: 09/26/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 12/29/2023]
Abstract
OBJECTIVE In this study, we employed a large language model to evaluate the diagnostic efficacy of radiology reports of bone scintigraphy in the context of identifying SAPHO syndrome, and further examined the potential of such a model to augment the diagnostic procedure. METHODS Imaging data and clinical information of 151 patients (105/46 women/men, mean age: 53.5 years) who underwent bone scintigraphy for suspected SAPHO syndrome between January 2007 and December 2022 were retrospectively reviewed. ChatGPT-4.0 was used as the large language model. The diagnostic performance of the large language model was verified by comparing the cases judged to have SAPHO syndrome that fulfilled Kahn's classification criteria based on a combination of concise radiology reports and skin lesions such as palmoplantar pustulosis, with cases diagnosed with SAPHO syndrome by rheumatologists based on all clinical information. The diagnostic performance of the large language model was verified. RESULTS The diagnostic accuracy of a large language model for analyzing bone scintigraphy radiology reports in conjunction with information about skin symptoms, such as palmoplantar pustulosis, achieved a sensitivity of 83.5%, specificity of 69.4%, and an overall accuracy of 76.8%. DISCUSSION While this research is an initial endeavor dedicated to the utilization of a substantial language model in the creation of a database for imaging diagnostics of rheumatic conditions, it exhibits commendable diagnostic accuracy, particularly for diseases with a wide range of symptoms like SAPHO syndrome, indicating a positive outlook for subsequent studies. CONCLUSION This research indicates the prospective value of extensive language models in scrutinizing radiology accounts from bone scintigraphy for the diagnosis of SAPHO syndrome.
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Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takuya Izumiyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ryuichi Kanabuchi
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Akita, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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18
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Mugikura S, Mori N, Gang M, Kanno S, Jin K, Osawa SI, Nakasato N, Takase K. Interhemispheric asymmetrical change in gray matter volume in patients with unilateral hippocampal sclerosis. J Clin Imaging Sci 2023; 13:38. [PMID: 38205275 PMCID: PMC10778066 DOI: 10.25259/jcis_77_2023] [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: 07/30/2023] [Accepted: 11/14/2023] [Indexed: 01/12/2024] Open
Abstract
Objectives To clarify the interhemispheric asymmetrical change in gray matter volume (GMV) in unilateral hippocampal sclerosis (HS), we compared changes in GMV relative to normal subjects between the HS and contralateral or non-HS sides. Material and Methods Forty-five patients with unilateral HS and 30 healthy subjects were enrolled. We quantified changes in GMV in the patients with HS as compared to GMV in the normal subjects by introducing the Z-score (Z-GMV) in each region or region of interest in unilateral HS. Then, we assessed the asymmetrically decreased regions, that is, regions with significantly higher Z-GMV on the HS side than the contralateral or non-HS side. Z-GMV was calculated according to the two templates of 58 regions per hemisphere covering the whole brain by anatomical automatic labeling (AAL) and 78 regions per cerebral hemisphere using the Anatomy Toolbox. Results Seven and four regions in AAL and 17 and 11 regions in Anatomy Toolbox were asymmetrically decreased in the Left Hand Side (LHS) and Right Hand Side (RHS), respectively. Hippocampus and Caudate in AAL, five subregions of the hippocampus (CA1-3, Dentate Gyrus and hippocampus-amygdala-transition-area and 4 extrahippocampal regions including two subregions in amygdala (CM: Centromedial, SF: Superficial), basal forebrain (BF) (Ch4), and thalamus (temporal) in anatomy toolbox were common among LHS and RHS concerning asymmetrically decreased regions. Conclusion By introducing Z-GMV, we demonstrated the regions with asymmetrically decreased GMV in LHS and RHS, and found that the hippocampus and extrahippocampal regions, including the BF, were the common asymmetrically decreased regions among LHS and RHS.
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Affiliation(s)
- Shunji Mugikura
- Department of Diagnostic Radiology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Miyeong Gang
- Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University, Sendai, Japan
| | - Shigenori Kanno
- Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University, Sendai, Japan
| | - Kazutaka Jin
- Department of Epileptology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Shin-Ichiro Osawa
- Department of Neurosurgery, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Nobukazu Nakasato
- Department of Epileptology, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Graduate School of Medicine, Tohoku University, Sendai, Japan
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19
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Mori N, Shimizu H, Mugikura S. Letter to the editor on "Segmentation methods applied to MRI-derived radiomic analysis for the prediction of placenta accreta spectrum in patients with placenta previa". Abdom Radiol (NY) 2023; 48:3776-3777. [PMID: 37733087 DOI: 10.1007/s00261-023-04056-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 08/29/2023] [Accepted: 09/11/2023] [Indexed: 09/22/2023]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
| | | | - Shunji Mugikura
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai, 980-8573, Japan
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20
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Mori Y, Izumi J, Okuyama A, Mori N, Niwa M. Nontraumatic rupture of the common bile duct: A case of successful diagnosis and conservative treatment in an elderly patient. Geriatr Gerontol Int 2023; 23:967-968. [PMID: 37918824 DOI: 10.1111/ggi.14724] [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: 09/20/2023] [Revised: 10/11/2023] [Accepted: 10/18/2023] [Indexed: 11/04/2023]
Affiliation(s)
- Yuri Mori
- Department of Radiology, Yokote Municipal Hospital, Yokote, Japan
| | - Junichi Izumi
- Department of Radiology, Yokote Municipal Hospital, Yokote, Japan
| | - Atsushi Okuyama
- Department of Gastroenterology, Yokote Municipal Hospital, Yokote, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Makoto Niwa
- Department of Surgery, Yokote Municipal Hospital, Yokote, Japan
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21
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Mori Y, Mori N. Anticipations for advancement of non-contrast MRI sequences suitable for longitudinal studies of rheumatoid arthritis. Radiol Med 2023; 128:1597-1598. [PMID: 37947997 DOI: 10.1007/s11547-023-01745-z] [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] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 10/19/2023] [Indexed: 11/12/2023]
Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan.
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-0825, Japan
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22
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Wada Y, Kumagai S, Shinozaki T, Murata T, Okuyama E, Takagi N, Mori N. Treatment outcomes of radiotherapy for malignant psoas syndrome: A single-center retrospective study. J Med Imaging Radiat Sci 2023; 54:595-602. [PMID: 37481374 DOI: 10.1016/j.jmir.2023.07.007] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/24/2023]
Abstract
INTRODUCTION The efficacy of radiotherapy for symptomatic relief of malignant psoas syndrome (MPS) remains unknown because there are limited publications with high level evidence, including analyses with sufficient number of cases, clinical trials, and systematic reviews about radiotherapy for MPS. We aimed to investigate the characteristics of and symptom relief rates in patients treated with radiotherapy for MPS in palliative intent. METHODS In this single-center retrospective study, we analyzed data of 22 consecutive patients treated with radiotherapy for MPS at our institution in Japan between 2012 and 2022. We recorded patient characteristics, including primary site, invasion pattern, recognition of MPS by the attending physician, radiation regimen, biological effective dose with α/β = 10 Gy (BED10), and adverse events. Since no objective evaluation index for palliative radiotherapy for non-bone metastases has been established, we modified and used an International Consensus on Palliative Radiotherapy Endpoint, which was originally used for bone metastases, to evaluate symptom relief in the present retrospective study. "Response" was defined as symptom relief described in medical records or the use of analgesic medications reduced by ≥25% within 3 months post-initiation of radiotherapy. RESULTS Genitourinary organs (41%) were the most common primary-tumor sites. MPS was caused by metastasis in the iliopsoas muscle in 14 patients (64%) and by direct invasion of the primary tumor in eight patients (36%). Since the optimal radiation dose for MPS has not been established, the radiation dose varied from low dose, which are used in palliative radiotherapy for painful bone metastases, to high dose with conventional fraction using 1.8 to 2 Gy per fraction, with a median BED10 of 48 Gy (range, 10.6-79.2 Gy). Fifteen patients (68%) achieved a response. No acute nor late adverse events of grade 2 or higher, according to Common Terminology Criteria for Adverse Events version 5.0, were reported during the observation period. CONCLUSION Radiotherapy for symptomatic MPS might be an effective treatment option with a high response rate (68%) and minimal adverse events. Since the present study is a retrospective study with small number of cases, a prospective study with a larger sample size is required.
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Affiliation(s)
- Yuki Wada
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan.
| | - Satoshi Kumagai
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Tetsugaku Shinozaki
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Toshiki Murata
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Eriko Okuyama
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Noriko Takagi
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
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23
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Koguchi M, Mori Y, Kamimura M, Ito K, Tanaka H, Kurishima H, Koyama T, Mori N, Masahashi N, Aizawa T. Low Young's Modulus TiNbSn Alloy Locking Plates Accelerate Osteosynthesis in Rabbit Tibiae. TOHOKU J EXP MED 2023; 261:199-209. [PMID: 37704419 DOI: 10.1620/tjem.2023.j075] [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] [Indexed: 09/15/2023]
Abstract
A new beta TiNbSn alloy with a low Young's modulus of approximately 40 GPa has been developed to resolve the stress shielding by Young's modulus divergence. In this study, the efficacy of TiNbSn alloy locking plates on bone repair is compared to that of commercially pure titanium (CP-Ti). The TiNbSn alloy and CP-Ti, which have Young's moduli of 49.1 GPa and 107 GPa, respectively, were compared. Male Japanese white rabbits were anesthetized, and osteotomy and osteosynthesis with locking plates were performed on the right tibia. The bone repair was assessed using micro-computed tomography (CT), histomorphometry, immunohistochemistry, and mechanical testing. Micro-CT, histomorphometry, immunohistochemistry, and mechanical testing were performed four weeks after osteotomy. Six weeks after surgery, micro-CT and mechanical testing were performed. Micro-CT analysis at four weeks after surgery showed that the intramedullary fracture callus in the TiNbSn alloy group had more bone volume and numerous bridging structures compared to the CP-Ti group (CP-Ti vs. TiNbSn alloy, 34.3 ± 13.1 mm3 vs. 61.3 ± 19.6 mm3, p = 0.02; mean ± standard deviation). At four weeks post-osteotomy, the healed tibia showed significantly higher strength in the TiNbSn alloy group compared with CP-Ti (CP-Ti vs. TiNbSn alloy, 81.3 ± 31.2 N vs. 133.7 ± 46.6 N, p = 0.04). TiNbSn alloy locking plates had a more positive impact on bone formation and bone strength restoration than the CP-Ti locking plates during the early phase of bone healing.
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Affiliation(s)
- Masashi Koguchi
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Masayuki Kamimura
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Kentaro Ito
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Hidetatsu Tanaka
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Hiroaki Kurishima
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Tomoki Koyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine
| | | | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine
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24
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Adriani O, Akaike Y, Asano K, Asaoka Y, Berti E, Bigongiari G, Binns WR, Bongi M, Brogi P, Bruno A, Buckley JH, Cannady N, Castellini G, Checchia C, Cherry ML, Collazuol G, de Nolfo GA, Ebisawa K, Ficklin AW, Fuke H, Gonzi S, Guzik TG, Hams T, Hibino K, Ichimura M, Ioka K, Ishizaki W, Israel MH, Kasahara K, Kataoka J, Kataoka R, Katayose Y, Kato C, Kawanaka N, Kawakubo Y, Kobayashi K, Kohri K, Krawczynski HS, Krizmanic JF, Maestro P, Marrocchesi PS, Messineo AM, Mitchell JW, Miyake S, Moiseev AA, Mori M, Mori N, Motz HM, Munakata K, Nakahira S, Nishimura J, Okuno S, Ormes JF, Ozawa S, Pacini L, Papini P, Rauch BF, Ricciarini SB, Sakai K, Sakamoto T, Sasaki M, Shimizu Y, Shiomi A, Spillantini P, Stolzi F, Sugita S, Sulaj A, Takita M, Tamura T, Terasawa T, Torii S, Tsunesada Y, Uchihori Y, Vannuccini E, Wefel JP, Yamaoka K, Yanagita S, Yoshida A, Yoshida K, Zober WV. Direct Measurement of the Spectral Structure of Cosmic-Ray Electrons+Positrons in the TeV Region with CALET on the International Space Station. Phys Rev Lett 2023; 131:191001. [PMID: 38000434 DOI: 10.1103/physrevlett.131.191001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/31/2023] [Accepted: 10/09/2023] [Indexed: 11/26/2023]
Abstract
Detailed measurements of the spectral structure of cosmic-ray electrons and positrons from 10.6 GeV to 7.5 TeV are presented from over 7 years of observations with the CALorimetric Electron Telescope (CALET) on the International Space Station. The instrument, consisting of a charge detector, an imaging calorimeter, and a total absorption calorimeter with a total depth of 30 radiation lengths at normal incidence and a fine shower imaging capability, is optimized to measure the all-electron spectrum well into the TeV region. Because of the excellent energy resolution (a few percent above 10 GeV) and the outstanding e/p separation (10^{5}), CALET provides optimal performance for a detailed search of structures in the energy spectrum. The analysis uses data up to the end of 2022, and the statistics of observed electron candidates has increased more than 3 times since the last publication in 2018. By adopting an updated boosted decision tree analysis, a sufficient proton rejection power up to 7.5 TeV is achieved, with a residual proton contamination less than 10%. The observed energy spectrum becomes gradually harder in the lower energy region from around 30 GeV, consistently with AMS-02, but from 300 to 600 GeV it is considerably softer than the spectra measured by DAMPE and Fermi-LAT. At high energies, the spectrum presents a sharp break around 1 TeV, with a spectral index change from -3.15 to -3.91, and a broken power law fitting the data in the energy range from 30 GeV to 4.8 TeV better than a single power law with 6.9 sigma significance, which is compatible with the DAMPE results. The break is consistent with the expected effects of radiation loss during the propagation from distant sources (except the highest energy bin). We have fitted the spectrum with a model consistent with the positron flux measured by AMS-02 below 1 TeV and interpreted the electron+positron spectrum with possible contributions from pulsars and nearby sources. Above 4.8 TeV, a possible contribution from known nearby supernova remnants, including Vela, is addressed by an event-by-event analysis providing a higher proton-rejection power than a purely statistical analysis.
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Affiliation(s)
- O Adriani
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - Y Akaike
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Asano
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - Y Asaoka
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - E Berti
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - G Bigongiari
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - W R Binns
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - M Bongi
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - P Brogi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - A Bruno
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - J H Buckley
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - N Cannady
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - G Castellini
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - C Checchia
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - M L Cherry
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - G Collazuol
- Department of Physics and Astronomy, University of Padova, Via Marzolo, 8, 35131 Padova, Italy
- INFN Sezione di Padova, Via Marzolo, 8, 35131 Padova, Italy
| | - G A de Nolfo
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - K Ebisawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - A W Ficklin
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - H Fuke
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Gonzi
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - T G Guzik
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - T Hams
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
| | - K Hibino
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - M Ichimura
- Faculty of Science and Technology, Graduate School of Science and Technology, Hirosaki University, 3, Bunkyo, Hirosaki, Aomori 036-8561, Japan
| | - K Ioka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - W Ishizaki
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - M H Israel
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - K Kasahara
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - J Kataoka
- School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - R Kataoka
- National Institute of Polar Research, 10-3, Midori-cho, Tachikawa, Tokyo 190-8518, Japan
| | - Y Katayose
- Faculty of Engineering, Division of Intelligent Systems Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - C Kato
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - N Kawanaka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Y Kawakubo
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Kobayashi
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Kohri
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - H S Krawczynski
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - J F Krizmanic
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - P Maestro
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - P S Marrocchesi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - A M Messineo
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
- University of Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - J W Mitchell
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - S Miyake
- Department of Electrical and Electronic Systems Engineering, National Institute of Technology (KOSEN), Ibaraki College, 866 Nakane, Hitachinaka, Ibaraki 312-8508, Japan
| | - A A Moiseev
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - M Mori
- Department of Physical Sciences, College of Science and Engineering, Ritsumeikan University, Shiga 525-8577, Japan
| | - N Mori
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - H M Motz
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - K Munakata
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - S Nakahira
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - J Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Okuno
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - J F Ormes
- Department of Physics and Astronomy, University of Denver, Physics Building, Room 211, 2112 East Wesley Avenue, Denver, Colorado 80208-6900, USA
| | - S Ozawa
- Quantum ICT Advanced Development Center, National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
| | - L Pacini
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - P Papini
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - B F Rauch
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - S B Ricciarini
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - K Sakai
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - T Sakamoto
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - M Sasaki
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - Y Shimizu
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - A Shiomi
- College of Industrial Technology, Nihon University, 1-2-1 Izumi, Narashino, Chiba 275-8575, Japan
| | - P Spillantini
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - F Stolzi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - S Sugita
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - A Sulaj
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - M Takita
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - T Tamura
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - T Terasawa
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - S Torii
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
| | - Y Tsunesada
- Graduate School of Science, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Nambu Yoichiro Institute for Theoretical and Experimental Physics, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Y Uchihori
- National Institutes for Quantum and Radiation Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - E Vannuccini
- INFN Sezione di Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - J P Wefel
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Yamaoka
- Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
| | - S Yanagita
- College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - A Yoshida
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - K Yoshida
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - W V Zober
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
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Mori N, Mugikura S, Takase K. The role of magnetic resonance imaging in prostate cancer patients on active surveillance. Br J Radiol 2023; 96:20220140. [PMID: 35604720 PMCID: PMC10607394 DOI: 10.1259/bjr.20220140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 02/23/2022] [Indexed: 11/05/2022] Open
Affiliation(s)
- Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Seiryo 1-1, Sendai, Japan
| | | | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Seiryo 1-1, Sendai, Japan
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26
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Mori Y, Mori N, Aizawa T. Validating MRI and ultrasound findings to predict bone destruction in rheumatoid arthritis. Mod Rheumatol 2023; 33:1209-1210. [PMID: 36300951 DOI: 10.1093/mr/roac129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/17/2022] [Indexed: 11/08/2023]
Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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27
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Mugikura S, Mori N. Letter to the Editor Regarding: "Identifying large vessel occlusion using the hyperdense artery sign in patients treated with mechanical thrombectomy". J Stroke Cerebrovasc Dis 2023; 32:107066. [PMID: 37002011 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107066] [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] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 02/28/2023] [Indexed: 04/03/2023] Open
Affiliation(s)
- Shunji Mugikura
- Department of Diagnostic Radiology, Graduate School of medicine, Tohoku University, Sendai, Japan; Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan.
| | - Naoko Mori
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan; Department of Radiology, Graduate School of Medicine, Akita University, Akita, Japan
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28
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Zhang Z, Zhang X, Chen J, Takane Y, Yanagaki S, Mori N, Ichiji K, Kato K, Yanagaki M, Ebata A, Miyashita M, Ishida T, Homma N. Risk Analysis of Breast Cancer by Using Bilateral Mammographic Density Differences: A Case-Control Study. TOHOKU J EXP MED 2023; 261:139-150. [PMID: 37558417 DOI: 10.1620/tjem.2023.j066] [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: 08/11/2023]
Abstract
The identification of risk factors helps radiologists assess the risk of breast cancer. Quantitative factors such as age and mammographic density are established risk factors for breast cancer. Asymmetric breast findings are frequently encountered during diagnostic mammography. The asymmetric area may indicate a developing mass in the early stage, causing a difference in mammographic density between the left and right sides. Therefore, this paper aims to propose a quantitative parameter named bilateral mammographic density difference (BMDD) for the quantification of breast asymmetry and to verify BMDD as a risk factor for breast cancer. To quantitatively evaluate breast asymmetry, we developed a semi-automatic method to estimate mammographic densities and calculate BMDD as the absolute difference between the left and right mammographic densities. And then, a retrospective case-control study, covering the period from July 2006 to October 2014, was conducted to analyse breast cancer risk in association with BMDD. The study included 364 women diagnosed with breast cancer and 364 matched control patients. As a result, a significant difference in BMDD was found between cases and controls (P < 0.001) and the case-control study demonstrated that women with BMDD > 10% had a 2.4-fold higher risk of breast cancer (odds ratio, 2.4; 95% confidence interval, 1.3-4.5) than women with BMDD ≤ 10%. In addition, we also demonstrated the positive association between BMDD and breast cancer risk among the subgroups with different ages and the Breast Imaging Reporting and Data System (BI-RADS) mammographic density categories. This study demonstrated that BMDD could be a potential risk factor for breast cancer.
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Affiliation(s)
- Zhang Zhang
- Department of Intelligent Biomedical Systems Engineering Laboratory, Graduate School of Biomedical Engineering, Tohoku University
| | - Xiaoyong Zhang
- Smart-Aging Research Center, Institute of Development, Aging and Cancer, Tohoku University
- Department of General Engineering, National Institute of Technology, Sendai College
| | - Jiaqi Chen
- Department of Radiological Imaging and Informatics, Tohoku University Graduate School of Medicine
| | - Yumi Takane
- Clinical Technology Department, Tohoku University Hospital
| | - Satoru Yanagaki
- Department of Diagnostic Radiology, Tohoku University Hospital
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine
| | - Kei Ichiji
- Department of Radiological Imaging and Informatics, Tohoku University Graduate School of Medicine
| | | | | | - Akiko Ebata
- Department of Surgery, Tohoku University Hospital
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine
| | - Minoru Miyashita
- Department of Surgery, Tohoku University Hospital
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine
| | - Takanori Ishida
- Department of Surgery, Tohoku University Hospital
- Department of Breast and Endocrine Surgical Oncology, Tohoku University Graduate School of Medicine
| | - Noriyasu Homma
- Department of Intelligent Biomedical Systems Engineering Laboratory, Graduate School of Biomedical Engineering, Tohoku University
- Department of Radiological Imaging and Informatics, Tohoku University Graduate School of Medicine
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29
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Mori N, Mugikura S, Takase K. Utility of histogram analysis for apparent diffusion coefficient values in evaluating the pathological characteristics of endometrial cancer. Br J Radiol 2023; 96:20210928. [PMID: 34520224 PMCID: PMC10546434 DOI: 10.1259/bjr.20210928] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/23/2021] [Indexed: 11/05/2022] Open
Affiliation(s)
- Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | | | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
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30
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Imafuku S, Korematsu K, Mori N, Kani T, Matsui K. Real-world safety and efficacy of amenamevir in patients with herpes zoster in Japan: A postmarketing observational study (REWARD). J Dermatol 2023; 50:1287-1300. [PMID: 37401122 DOI: 10.1111/1346-8138.16876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 07/05/2023]
Abstract
The helicase-primase inhibitor amenamevir (AMNV) was approved for herpes zoster in Japan in 2017. The authors conducted a 1-month postmarketing observational study to evaluate the real-world safety and efficacy (cutaneous improvement and pain resolution) of AMNV in patients with herpes zoster. Of the 3453 patients registered between March 2018 and December 2020, 3110 were included in the safety analyses. The mean age (±standard deviation) was 63.7 ± 17.5 years, with 57.9% of patients aged ≥65 years. Most patients had mild (53.3%) or moderate (41.0%) cutaneous lesions. Regarding pain, 43.9%, 25.6%, and 12.5% of patients had pain at the levels of 1-3, 4-6, and 7-10 on the numerical rating scale. In total, 30.0%, 27.2%, and 16.1% of patients were concomitantly treated with analgesics: acetaminophen, nonsteroidal anti-inflammatory drugs, and Ca2+ channel α 2δ ligands, respectively, and 10.6% were treated with topical antiherpetic drugs. Adverse drug reactions occurred in 0.77% of patients, including four serious adverse drug reactions in four patients (hyponatremia, thrombocytopenia, rash, and rhabdomyolysis). Regarding important potential risks, renal disorder, cardiovascular events, and decreased platelets were observed in one, one, and two patients, respectively. Concerning efficacy, the cutaneous improvement rate (significantly improved or improved) was 95.5%, with significantly higher improvement rates in patients treated with AMNV for 7 days and in patients with less severe cutaneous lesions or less pain. Factors affecting the time to pain resolution were the severity of cutaneous lesions and pain at the start of AMNV treatment and older age. This study demonstrated that the AMNV is safe and effective in patients with herpes zoster in a real-world clinical setting.
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Affiliation(s)
- Shinich Imafuku
- Department of Dermatology, Fukuoka University, Fukuoka, Japan
| | - Kenta Korematsu
- Pharmacovigilance & PMS Department, Maruho Co., Ltd., Osaka, Japan
| | - Naoko Mori
- Pharmacovigilance & PMS Department, Maruho Co., Ltd., Osaka, Japan
| | - Tsuyoshi Kani
- Pharmacovigilance & PMS Department, Maruho Co., Ltd., Osaka, Japan
| | - Keita Matsui
- Pharmacovigilance & PMS Department, Maruho Co., Ltd., Osaka, Japan
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Adriani O, Akaike Y, Asano K, Asaoka Y, Berti E, Bigongiari G, Binns WR, Bongi M, Brogi P, Bruno A, Buckley JH, Cannady N, Castellini G, Checchia C, Cherry ML, Collazuol G, de Nolfo GA, Ebisawa K, Ficklin AW, Fuke H, Gonzi S, Guzik TG, Hams T, Hibino K, Ichimura M, Ioka K, Ishizaki W, Israel MH, Kasahara K, Kataoka J, Kataoka R, Katayose Y, Kato C, Kawanaka N, Kawakubo Y, Kobayashi K, Kohri K, Krawczynski HS, Krizmanic JF, Maestro P, Marrocchesi PS, Messineo AM, Mitchell JW, Miyake S, Moiseev AA, Mori M, Mori N, Motz HM, Munakata K, Nakahira S, Nishimura J, Okuno S, Ormes JF, Ozawa S, Pacini L, Papini P, Rauch BF, Ricciarini SB, Sakai K, Sakamoto T, Sasaki M, Shimizu Y, Shiomi A, Spillantini P, Stolzi F, Sugita S, Sulaj A, Takita M, Tamura T, Terasawa T, Torii S, Tsunesada Y, Uchihori Y, Vannuccini E, Wefel JP, Yamaoka K, Yanagita S, Yoshida A, Yoshida K, Zober WV. Erratum: Charge-Sign Dependent Cosmic-Ray Modulation Observed with the Calorimetric Electron Telescope on the International Space Station [Phys. Rev. Lett. 130, 211001 (2023)]. Phys Rev Lett 2023; 131:109902. [PMID: 37739390 DOI: 10.1103/physrevlett.131.109902] [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] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Indexed: 09/24/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.130.211001.
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Mori N, Mori Y. Radiologic-pathologic correlation should be considered to place the region of interest on the intravoxel incoherent motion imaging and diffusion kurtosis imaging maps. Eur J Radiol 2023; 166:110975. [PMID: 37490814 DOI: 10.1016/j.ejrad.2023.110975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/27/2023]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan.
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo machi, Aobaku, Sendai, Miyagi 980-8574, Japan.
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Wada Y, Shinozaki T, Murata T, Kumagai S, Takagi N, Mori N. In Regard to Kil et al. Adv Radiat Oncol 2023; 8:101293. [PMID: 37719310 PMCID: PMC10504434 DOI: 10.1016/j.adro.2023.101293] [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: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 09/19/2023] Open
Affiliation(s)
- Yuki Wada
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Tetsugaku Shinozaki
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Toshiki Murata
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Satoshi Kumagai
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Noriko Takagi
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
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34
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Numakura K, Kobayashi M, Muto Y, Sato H, Sekine Y, Sobu R, Aoyama Y, Takahashi Y, Okada S, Sasagawa H, Narita S, Kumagai S, Wada Y, Mori N, Habuchi T. The Current Trend of Radiation Therapy for Patients with Localized Prostate Cancer. Curr Oncol 2023; 30:8092-8110. [PMID: 37754502 PMCID: PMC10529045 DOI: 10.3390/curroncol30090587] [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: 06/23/2023] [Revised: 08/22/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
A recent approach to radiotherapy for prostate cancer is the administration of high doses of radiation to the prostate while minimizing the risk of side effects. Thus, image-guided radiotherapy utilizes advanced imaging techniques and is a feasible strategy for increasing the radiation dose. New radioactive particles are another approach to achieving high doses and safe procedures. Prostate brachytherapy is currently considered as a combination therapy. Spacers are useful to protect adjacent organs, specifically the rectum, from excessive radiation exposure.
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Affiliation(s)
- Kazuyuki Numakura
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Mizuki Kobayashi
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Yumina Muto
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Hiromi Sato
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Yuya Sekine
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Ryuta Sobu
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Yu Aoyama
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Yoshiko Takahashi
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Syuhei Okada
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Hajime Sasagawa
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Shintaro Narita
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
| | - Satoshi Kumagai
- Department of Radiology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (S.K.); (Y.W.); (N.M.)
| | - Yuki Wada
- Department of Radiology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (S.K.); (Y.W.); (N.M.)
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (S.K.); (Y.W.); (N.M.)
| | - Tomonori Habuchi
- Department of Urology, Akita University Graduate School of Medicine, Akita 010-8543, Japan; (M.K.); (Y.M.); (H.S.); (Y.S.); (R.S.); (Y.A.); (Y.T.); (S.O.); (H.S.); (S.N.); (T.H.)
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Mori Y, Izumiyama T, Okuno H, Watanuki M, Kanabuchi R, Yoshida S, Iwatsu J, Mori N, Aizawa T. Assessment of clinical and radiological characteristics of Japanese patients with SAPHO syndrome. Mod Rheumatol 2023:road086. [PMID: 37616493 DOI: 10.1093/mr/road086] [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: 05/24/2023] [Revised: 07/26/2023] [Accepted: 08/18/2023] [Indexed: 08/26/2023]
Abstract
OBJECTIVE This study aimed to analyse the radiological characteristics and clinical diversity of Japanese patients with synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome, a heterogeneous disorder. METHODS Radiographs and clinical information from 115 Japanese patients (female/male: 81/34, mean age at onset: 48.7 years) diagnosed with SAPHO syndrome between January 2007 and December 2020 were retrospectively reviewed. Additionally, the treatment for SAPHO syndrome was explored. RESULTS Among the 115 patients, 70 patients had complications, including palmoplantar pustulosis, acne, or psoriasis. Imaging studies included bone scintigraphy, magnetic resonance imaging, computed tomography, and positron emission tomography in 71, 58, 70, and 23 patients, respectively. The most frequent lesions were arthritis and hyperostosis of the sternoclavicular joints in 96 patients; spinal lesions, including sacroiliac arthritis were observed in 85 patients. Peripheral aseptic osteitis was observed in 22 patients, and the tibia was involved in 12. The treatments consisted of analgesics, bisphosphonates, conventional synthetic disease-modifying anti-rheumatic drugs, and biologics (tumour necrosis factor inhibitors and interleukin-23p19 inhibitors) in 85, 15, 23, and 10 patients (8 and 2 patients), respectively. CONCLUSION Sternoclavicular hyperostosis and pustulosis are frequently observed in patients with SAPHO syndrome. Biological agents were more frequently used in patients with peripheral osteitis and arthritis.
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Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takuya Izumiyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroshi Okuno
- Department of Orthopaedic Surgery, Tohoku Rosai Hospital, Sendai, Miyagi, Japan
| | - Munenori Watanuki
- Department of Orthopaedic Surgery, JR Sendai Hospital, Sendai, Miyagi, Japan
| | - Ryuichi Kanabuchi
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Shinichiro Yoshida
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Jun Iwatsu
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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Takagi N, Wada Y, Mori N. Re.: "A Systematic Review of the Safety and Efficacy of Stenting of the Inferior Vena Cava". Eur J Vasc Endovasc Surg 2023; 66:290. [PMID: 37024042 DOI: 10.1016/j.ejvs.2023.03.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 03/10/2023] [Indexed: 04/08/2023]
Affiliation(s)
- Noriko Takagi
- Akita University Graduate School of Medicine, Akita, Japan.
| | - Yuri Wada
- Akita University Graduate School of Medicine, Akita, Japan
| | - Naoko Mori
- Akita University Graduate School of Medicine, Akita, Japan
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Mori N, Mugikura S. Letter to the editor: Radiomics features of patients with placenta accreta spectrum: A quantification of heterogeneity caused by intraplacental T2-hypointense bands. Int J Gynaecol Obstet 2023; 162:781-782. [PMID: 37349992 DOI: 10.1002/ijgo.14977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Accepted: 06/16/2023] [Indexed: 06/24/2023]
Affiliation(s)
- Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Shunji Mugikura
- Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Taira M, Mugikura S, Mori N, Hozawa A, Saito T, Nakamura T, Kiyomoto H, Kobayashi T, Ogishima S, Nagami F, Uruno A, Shimizu R, Kobayashi T, Yasuda J, Kure S, Sakurai M, Motoike IN, Kumada K, Nakaya N, Obara T, Oba K, Sekiguchi A, Thyreau B, Mutoh T, Takano Y, Abe M, Maikusa N, Tatewaki Y, Taki Y, Yaegashi N, Tomita H, Kinoshita K, Kuriyama S, Fuse N, Yamamoto M. Tohoku Medical Megabank Brain Magnetic Resonance Imaging Study: Rationale, Design, and Background. JMA J 2023; 6:246-264. [PMID: 37560377 PMCID: PMC10407421 DOI: 10.31662/jmaj.2022-0220] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 04/24/2023] [Indexed: 08/11/2023] Open
Abstract
The Tohoku Medical Megabank Brain Magnetic Resonance Imaging Study (TMM Brain MRI Study) was established to collect multimodal information through neuroimaging and neuropsychological assessments to evaluate the cognitive function and mental health of residents who experienced the Great East Japan Earthquake (GEJE) and associated tsunami. The study also aimed to promote advances in personalized healthcare and medicine related to mental health and cognitive function among the general population. We recruited participants for the first (baseline) survey starting in July 2014, enrolling individuals who were participating in either the TMM Community-Based Cohort Study (TMM CommCohort Study) or the TMM Birth and Three-Generation Cohort Study (TMM BirThree Cohort Study). We collected multiple magnetic resonance imaging (MRI) sequences, including 3D T1-weighted sequences, magnetic resonance angiography (MRA), diffusion tensor imaging (DTI), pseudo-continuous arterial spin labeling (pCASL), and three-dimensional fluid-attenuated inversion recovery (FLAIR) sequences. To assess neuropsychological status, we used both questionnaire- and interview-based rating scales. The former assessments included the Tri-axial Coping Scale, Impact of Event Scale in Japanese, Profile of Mood States, and 15-item Depression, Anxiety, and Stress Scale, whereas the latter assessments included the Mini-Mental State Examination, Japanese version. A total of 12,164 individuals were recruited for the first (baseline) survey, including those unable to complete all assessments. In parallel, we returned the MRI results to the participants and subsequently shared the MRI data through the TMM Biobank. At present, the second (first follow-up) survey of the study started in October 2019 is underway. In this study, we established a large and comprehensive database that included robust neuroimaging data as well as psychological and cognitive assessment data. In combination with genomic and omics data already contained in the TMM Biobank database, these data could provide new insights into the relationships of pathological processes with neuropsychological disorders, including age-related cognitive impairment.
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Affiliation(s)
- Makiko Taira
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
| | - Shunji Mugikura
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
| | - Naoko Mori
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
| | - Atsushi Hozawa
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Tomo Saito
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
| | - Tomohiro Nakamura
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Hideyasu Kiyomoto
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Tadao Kobayashi
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Soichi Ogishima
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
| | - Fuji Nagami
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Akira Uruno
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Ritsuko Shimizu
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Tomoko Kobayashi
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
| | - Jun Yasuda
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Miyagi Cancer Center, Natori, Japan
| | - Shigeo Kure
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
- Miyagi Children's Hospital, Sendai, Japan
| | - Miyuki Sakurai
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Ikuko N Motoike
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Kazuki Kumada
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Naoki Nakaya
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Taku Obara
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kentaro Oba
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Atsushi Sekiguchi
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Benjamin Thyreau
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Tatsushi Mutoh
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yuji Takano
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- University of Human Environments, Matsuyama, Japan
| | - Mitsunari Abe
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
- Graduate School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Norihide Maikusa
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan
- Graduate School of Art and Science, University of Tokyo, Tokyo, Japan
| | - Yasuko Tatewaki
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yasuyuki Taki
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Nobuo Yaegashi
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Tohoku University Hospital, Tohoku University, Sendai, Japan
| | - Kengo Kinoshita
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
- Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Shinichi Kuriyama
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
- The United Centers for Advanced Research and Translational Medicine, Tohoku University, Sendai, Japan
| | - Nobuo Fuse
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
| | - Masayuki Yamamoto
- Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Japan
- Advanced Research Center for Innovations in Next-Generation Medicine, Tohoku University, Sendai, Japan
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Mori Y, Mori N. Approaches to reduce periprosthetic bone resorption after total hip arthroplasty. J Bone Miner Metab 2023; 41:575-576. [PMID: 37029833 DOI: 10.1007/s00774-023-01423-0] [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] [Received: 03/06/2023] [Accepted: 03/08/2023] [Indexed: 04/09/2023]
Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, Miyagi, 980-8574, Japan.
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
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Koyama T, Mori Y, Kamimura M, Aki T, Izumiyama T, Mori N, Chiba D, Hashimoto K, Yamamoto N, Aizawa T. Two-stage revision knee arthroplasty for metallosis in a patient with rheumatoid arthritis: A case report. SAGE Open Med Case Rep 2023; 11:2050313X231177752. [PMID: 37325170 PMCID: PMC10265328 DOI: 10.1177/2050313x231177752] [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: 12/21/2022] [Accepted: 05/08/2023] [Indexed: 06/17/2023] Open
Abstract
We report a successful case of two-stage revision total knee arthroplasty performed for treating painless metallosis after total knee arthroplasty with a metal-backed patella. A 63-year-old woman diagnosed with rheumatoid arthritis underwent left total knee arthroplasty with a metal-backed patella at 32 years of age. The patient did not have knee pain; however, knee joint swelling, a strange noise, and pigmentation were reported 4 years ago. Radiographs showed cloud and metal-line signs anteriorly and posteriorly at the femoral condyle. Therefore, a two-stage surgery was performed for infection prevention and ease of performing posterior synovectomy. The patient underwent initial synovectomy via a posterior approach, followed by anterior synovectomy and revision total knee arthroplasty. Synovectomy was performed well without perioperative infection or failure of wound healing. In cases with metallosis after total knee arthroplasty, the two-stage revision total knee arthroplasty should be considered, depending on the degree of synovial proliferation and the risk of complications.
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Affiliation(s)
- Tomoki Koyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masayuki Kamimura
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takashi Aki
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Takuya Izumiyama
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Daisuke Chiba
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ko Hashimoto
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuyuki Yamamoto
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Toshimi Aizawa
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan
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41
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Mugikura S, Mori N. Pediatric arterial ischemic stroke in Japan: Moyamoya disease or not. J Stroke Cerebrovasc Dis 2023; 32:107063. [PMID: 36989969 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107063] [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] [Received: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/29/2023] Open
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Adriani O, Akaike Y, Asano K, Asaoka Y, Berti E, Bigongiari G, Binns WR, Bongi M, Brogi P, Bruno A, Buckley JH, Cannady N, Castellini G, Checchia C, Cherry ML, Collazuol G, de Nolfo GA, Ebisawa K, Ficklin AW, Fuke H, Gonzi S, Guzik TG, Hams T, Hibino K, Ichimura M, Ioka K, Ishizaki W, Israel MH, Kasahara K, Kataoka J, Kataoka R, Katayose Y, Kato C, Kawanaka N, Kawakubo Y, Kobayashi K, Kohri K, Krawczynski HS, Krizmanic JF, Maestro P, Marrocchesi PS, Messineo AM, Mitchell JW, Miyake S, Moiseev AA, Mori M, Mori N, Motz HM, Munakata K, Nakahira S, Nishimura J, Okuno S, Ormes JF, Ozawa S, Pacini L, Papini P, Rauch BF, Ricciarini SB, Sakai K, Sakamoto T, Sasaki M, Shimizu Y, Shiomi A, Spillantini P, Stolzi F, Sugita S, Sulaj A, Takita M, Tamura T, Terasawa T, Torii S, Tsunesada Y, Uchihori Y, Vannuccini E, Wefel JP, Yamaoka K, Yanagita S, Yoshida A, Yoshida K, Zober WV. Charge-Sign Dependent Cosmic-Ray Modulation Observed with the Calorimetric Electron Telescope on the International Space Station. Phys Rev Lett 2023; 130:211001. [PMID: 37295105 DOI: 10.1103/physrevlett.130.211001] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/16/2023] [Accepted: 04/13/2023] [Indexed: 06/12/2023]
Abstract
We present the observation of a charge-sign dependent solar modulation of galactic cosmic rays (GCRs) with the Calorimetric Electron Telescope onboard the International Space Station over 6 yr, corresponding to the positive polarity of the solar magnetic field. The observed variation of proton count rate is consistent with the neutron monitor count rate, validating our methods for determining the proton count rate. It is observed by the Calorimetric Electron Telescope that both GCR electron and proton count rates at the same average rigidity vary in anticorrelation with the tilt angle of the heliospheric current sheet, while the amplitude of the variation is significantly larger in the electron count rate than in the proton count rate. We show that this observed charge-sign dependence is reproduced by a numerical "drift model" of the GCR transport in the heliosphere. This is a clear signature of the drift effect on the long-term solar modulation observed with a single detector.
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Affiliation(s)
- O Adriani
- Department of Physics, University of Florence, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - Y Akaike
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Asano
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - Y Asaoka
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - E Berti
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - G Bigongiari
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - W R Binns
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
| | - M Bongi
- Department of Physics, University of Florence, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - P Brogi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - A Bruno
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - J H Buckley
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
| | - N Cannady
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - G Castellini
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - C Checchia
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - M L Cherry
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - G Collazuol
- Department of Physics and Astronomy, University of Padova, Via Marzolo, 8, 35131 Padova, Italy
- INFN Sezione di Padova, Via Marzolo, 8, 35131 Padova, Italy
| | - G A de Nolfo
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - K Ebisawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - A W Ficklin
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - H Fuke
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Gonzi
- Department of Physics, University of Florence, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - T G Guzik
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - T Hams
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
| | - K Hibino
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - M Ichimura
- Faculty of Science and Technology, Graduate School of Science and Technology, Hirosaki University, 3, Bunkyo, Hirosaki, Aomori 036-8561, Japan
| | - K Ioka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - W Ishizaki
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - M H Israel
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
| | - K Kasahara
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - J Kataoka
- School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - R Kataoka
- National Institute of Polar Research, 10-3, Midori-cho, Tachikawa, Tokyo 190-8518, Japan
| | - Y Katayose
- Faculty of Engineering, Division of Intelligent Systems Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - C Kato
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - N Kawanaka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Y Kawakubo
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Kobayashi
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Kohri
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - H S Krawczynski
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
| | - J F Krizmanic
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - P Maestro
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - P S Marrocchesi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - A M Messineo
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
- University of Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - J W Mitchell
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - S Miyake
- Department of Electrical and Electronic Systems Engineering, National Institute of Technology (KOSEN), Ibaraki College, 866 Nakane, Hitachinaka, Ibaraki 312-8508, Japan
| | - A A Moiseev
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - M Mori
- Department of Physical Sciences, College of Science and Engineering, Ritsumeikan University, Shiga 525-8577, Japan
| | - N Mori
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - H M Motz
- Faculty of Science and Engineering, Global Center for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - K Munakata
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - S Nakahira
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - J Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Okuno
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - J F Ormes
- Department of Physics and Astronomy, University of Denver, Physics Building, Room 211, 2112 East Wesley Avenue, Denver, Colorado 80208-6900, USA
| | - S Ozawa
- Quantum ICT Advanced Development Center, National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
| | - L Pacini
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - P Papini
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - B F Rauch
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
| | - S B Ricciarini
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - K Sakai
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - T Sakamoto
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - M Sasaki
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - Y Shimizu
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - A Shiomi
- College of Industrial Technology, Nihon University, 1-2-1 Izumi, Narashino, Chiba 275-8575, Japan
| | - P Spillantini
- Department of Physics, University of Florence, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - F Stolzi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - S Sugita
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - A Sulaj
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3 - 56127 Pisa, Italy
| | - M Takita
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - T Tamura
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - T Terasawa
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - S Torii
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
| | - Y Tsunesada
- Graduate School of Science, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Nambu Yoichiro Institute for Theoretical and Experimental Physics, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Y Uchihori
- National Institutes for Quantum and Radiation Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - E Vannuccini
- INFN Sezione di Firenze, Via Sansone, 1 - 50019, Sesto Fiorentino, Italy
| | - J P Wefel
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Yamaoka
- Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
| | - S Yanagita
- College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - A Yoshida
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - K Yoshida
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - W V Zober
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, Saint Louis, Missouri 63130-4899, USA
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Adriani O, Akaike Y, Asano K, Asaoka Y, Berti E, Bigongiari G, Binns WR, Bongi M, Brogi P, Bruno A, Buckley JH, Cannady N, Castellini G, Checchia C, Cherry ML, Collazuol G, de Nolfo GA, Ebisawa K, Ficklin AW, Fuke H, Gonzi S, Guzik TG, Hams T, Hibino K, Ichimura M, Ioka K, Ishizaki W, Israel MH, Kasahara K, Kataoka J, Kataoka R, Katayose Y, Kato C, Kawanaka N, Kawakubo Y, Kobayashi K, Kohri K, Krawczynski HS, Krizmanic JF, Maestro P, Marrocchesi PS, Messineo AM, Mitchell JW, Miyake S, Moiseev AA, Mori M, Mori N, Motz HM, Munakata K, Nakahira S, Nishimura J, Okuno S, Ormes JF, Ozawa S, Pacini L, Papini P, Rauch BF, Ricciarini SB, Sakai K, Sakamoto T, Sasaki M, Shimizu Y, Shiomi A, Spillantini P, Stolzi F, Sugita S, Sulaj A, Takita M, Tamura T, Terasawa T, Torii S, Tsunesada Y, Uchihori Y, Vannuccini E, Wefel JP, Yamaoka K, Yanagita S, Yoshida A, Yoshida K, Zober WV. Direct Measurement of the Cosmic-Ray Helium Spectrum from 40 GeV to 250 TeV with the Calorimetric Electron Telescope on the International Space Station. Phys Rev Lett 2023; 130:171002. [PMID: 37172251 DOI: 10.1103/physrevlett.130.171002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Accepted: 04/03/2023] [Indexed: 05/14/2023]
Abstract
We present the results of a direct measurement of the cosmic-ray helium spectrum with the CALET instrument in operation on the International Space Station since 2015. The observation period covered by this analysis spans from October 13, 2015, to April 30, 2022 (2392 days). The very wide dynamic range of CALET allowed for the collection of helium data over a large energy interval, from ∼40 GeV to ∼250 TeV, for the first time with a single instrument in low Earth orbit. The measured spectrum shows evidence of a deviation of the flux from a single power law by more than 8σ with a progressive spectral hardening from a few hundred GeV to a few tens of TeV. This result is consistent with the data reported by space instruments including PAMELA, AMS-02, and DAMPE and balloon instruments including CREAM. At higher energy we report the onset of a softening of the helium spectrum around 30 TeV (total kinetic energy). Though affected by large uncertainties in the highest energy bins, the observation of a flux reduction turns out to be consistent with the most recent results of DAMPE. A double broken power law is found to fit simultaneously both spectral features: the hardening (at lower energy) and the softening (at higher energy). A measurement of the proton to helium flux ratio in the energy range from 60 GeV/n to about 60 TeV/n is also presented, using the CALET proton flux recently updated with higher statistics.
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Affiliation(s)
- O Adriani
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - Y Akaike
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Asano
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - Y Asaoka
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - E Berti
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - G Bigongiari
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - W R Binns
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - M Bongi
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - P Brogi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - A Bruno
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - J H Buckley
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - N Cannady
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - G Castellini
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - C Checchia
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - M L Cherry
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - G Collazuol
- Department of Physics and Astronomy, University of Padova, Via Marzolo, 8, 35131 Padova, Italy
- INFN Sezione di Padova, Via Marzolo, 8, 35131 Padova, Italy
| | - G A de Nolfo
- Heliospheric Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - K Ebisawa
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - A W Ficklin
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - H Fuke
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Gonzi
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - T G Guzik
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - T Hams
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
| | - K Hibino
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - M Ichimura
- Faculty of Science and Technology, Graduate School of Science and Technology, Hirosaki University, 3, Bunkyo, Hirosaki, Aomori 036-8561, Japan
| | - K Ioka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - W Ishizaki
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - M H Israel
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - K Kasahara
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - J Kataoka
- School of Advanced Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - R Kataoka
- National Institute of Polar Research, 10-3, Midori-cho, Tachikawa, Tokyo 190-8518, Japan
| | - Y Katayose
- Faculty of Engineering, Division of Intelligent Systems Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
| | - C Kato
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - N Kawanaka
- Yukawa Institute for Theoretical Physics, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Y Kawakubo
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Kobayashi
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
- JEM Utilization Center, Human Spaceflight Technology Directorate, Japan Aerospace Exploration Agency, 2-1-1 Sengen, Tsukuba, Ibaraki 305-8505, Japan
| | - K Kohri
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization, 1-1 Oho, Tsukuba, Ibaraki, 305-0801, Japan
| | - H S Krawczynski
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - J F Krizmanic
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - P Maestro
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - P S Marrocchesi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - A M Messineo
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
- University of Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - J W Mitchell
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - S Miyake
- Department of Electrical and Electronic Systems Engineering, National Institute of Technology (KOSEN), Ibaraki College, 866 Nakane, Hitachinaka, Ibaraki 312-8508, Japan
| | - A A Moiseev
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - M Mori
- Department of Physical Sciences, College of Science and Engineering, Ritsumeikan University, Shiga 525-8577, Japan
| | - N Mori
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - H M Motz
- Faculty of Science and Engineering, Global Center for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan
| | - K Munakata
- Faculty of Science, Shinshu University, 3-1-1 Asahi, Matsumoto, Nagano 390-8621, Japan
| | - S Nakahira
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - J Nishimura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Chuo, Sagamihara, Kanagawa 252-5210, Japan
| | - S Okuno
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - J F Ormes
- Department of Physics and Astronomy, University of Denver, Physics Building, Room 211, 2112 East Wesley Avenue, Denver, Colorado 80208-6900, USA
| | - S Ozawa
- Quantum ICT Advanced Development Center, National Institute of Information and Communications Technology, 4-2-1 Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan
| | - L Pacini
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - P Papini
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - B F Rauch
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
| | - S B Ricciarini
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
- Institute of Applied Physics (IFAC), National Research Council (CNR), Via Madonna del Piano, 10, 50019, Sesto Fiorentino, Italy
| | - K Sakai
- Center for Space Sciences and Technology, University of Maryland, Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland 21250, USA
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
| | - T Sakamoto
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - M Sasaki
- Astroparticle Physics Laboratory, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Center for Research and Exploration in Space Sciences and Technology, NASA/GSFC, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20742, USA
| | - Y Shimizu
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - A Shiomi
- College of Industrial Technology, Nihon University, 1-2-1 Izumi, Narashino, Chiba 275-8575, Japan
| | - P Spillantini
- Department of Physics, University of Florence, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - F Stolzi
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - S Sugita
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - A Sulaj
- Department of Physical Sciences, Earth and Environment, University of Siena, via Roma 56, 53100 Siena, Italy
- INFN Sezione di Pisa, Polo Fibonacci, Largo B. Pontecorvo, 3-56127 Pisa, Italy
| | - M Takita
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - T Tamura
- Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa, Yokohama, Kanagawa 221-8686, Japan
| | - T Terasawa
- Institute for Cosmic Ray Research, The University of Tokyo, 5-1-5 Kashiwa-no-Ha, Kashiwa, Chiba 277-8582, Japan
| | - S Torii
- Waseda Research Institute for Science and Engineering, Waseda University, 17 Kikuicho, Shinjuku, Tokyo 162-0044, Japan
| | - Y Tsunesada
- Graduate School of Science, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
- Nambu Yoichiro Institute for Theoretical and Experimental Physics, Osaka Metropolitan University, Sugimoto, Sumiyoshi, Osaka 558-8585, Japan
| | - Y Uchihori
- National Institutes for Quantum and Radiation Science and Technology, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan
| | - E Vannuccini
- INFN Sezione di Firenze, Via Sansone, 1-50019, Sesto Fiorentino, Italy
| | - J P Wefel
- Department of Physics and Astronomy, Louisiana State University, 202 Nicholson Hall, Baton Rouge, Louisiana 70803, USA
| | - K Yamaoka
- Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan
| | - S Yanagita
- College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - A Yoshida
- College of Science and Engineering, Department of Physics and Mathematics, Aoyama Gakuin University, 5-10-1 Fuchinobe, Chuo, Sagamihara, Kanagawa 252-5258, Japan
| | - K Yoshida
- Department of Electronic Information Systems, Shibaura Institute of Technology, 307 Fukasaku, Minuma, Saitama 337-8570, Japan
| | - W V Zober
- Department of Physics and McDonnell Center for the Space Sciences, Washington University, One Brookings Drive, St. Louis, Missouri 63130-4899, USA
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Konno M, Anbai A, Fukuda K, Mori N. Recognition of types and frequency of incidental findings in cancer staging CT should be essential for future artificial intelligence development. Clin Imaging 2023; 99:31-32. [PMID: 37054656 DOI: 10.1016/j.clinimag.2023.04.005] [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] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/05/2023] [Indexed: 04/15/2023]
Affiliation(s)
- Motoko Konno
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan.
| | - Akira Anbai
- Department of Radiology, Omagari Kousei Medical Center, 8-65, Omagari, Tori-cho, Daisen, Akita 0140027, Japan.
| | - Koji Fukuda
- Department of Clinical Oncology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita 010-8543, Japan.
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Okuyama E, Matsuda M, Mori Y, Mori N. Radiologist expertise and responsibilities for off-label use of Urografin before the change in indication by medical health insurance. Jpn J Radiol 2023:10.1007/s11604-023-01404-3. [PMID: 36913009 DOI: 10.1007/s11604-023-01404-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 02/20/2023] [Indexed: 03/14/2023]
Affiliation(s)
- Eriko Okuyama
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Masazumi Matsuda
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan
| | - Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-Ku, Sendai, 980-8575, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, 010-8543, Japan.
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Mori N, Endo H, Mugikura S. Letter to the Editor on "Pseudo-Enhancement in Intracranial Aneurysms on Black-Blood MRI: Effects of Flow Rate, Spatial Resolution, and Additional Flow Suppression". J Magn Reson Imaging 2023; 57:964. [PMID: 35708113 DOI: 10.1002/jmri.28293] [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: 04/13/2022] [Accepted: 05/27/2022] [Indexed: 11/12/2022] Open
Affiliation(s)
- Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hidenori Endo
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Neurosurgery, Kohnan Hospital, Sendai, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
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Mori Y, Mori N. Effect of vitamin D administration on muscle function improvement depending on vitamin D sufficiency status. J Bone Miner Metab 2023; 41:286-287. [PMID: 36512084 DOI: 10.1007/s00774-022-01394-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 12/03/2022] [Indexed: 12/15/2022]
Affiliation(s)
- Yu Mori
- Department of Orthopaedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-Machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan.
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
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Mori N, Mugikura S, Takase K. Potential of specimen diffusion-weighted imaging to assess the intraoperative margin for ductal carcinoma in situ and invasive breast cancer. J Surg Oncol 2023; 127:514-516. [PMID: 36394392 DOI: 10.1002/jso.27129] [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: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan.,Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Sendai, Japan
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Mori Y, Fujimori S, Kurishima H, Inoue H, Ishii K, Kubota M, Kawakami K, Mori N, Aizawa T, Masahashi N. Antimicrobial Properties of TiNbSn Alloys Anodized in a Sulfuric Acid Electrolyte. Materials (Basel) 2023; 16:1487. [PMID: 36837117 PMCID: PMC9968052 DOI: 10.3390/ma16041487] [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] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 06/18/2023]
Abstract
TiNbSn alloy is a high-performance titanium alloy which is biosafe, strong, and has a low Young's modulus. TiNbSn alloy has been clinically applied as a material for orthopedic prosthesis. Anodized TiNbSn alloys with acetic and sulfuric acid electrolytes have excellent biocompatibility for osseointegration. Herein, TiNbSn alloy was anodized in a sulfuric acid electrolyte to determine the antimicrobial activity. The photocatalytic activities of the anodic oxide alloys were investigated based on their electronic band structure and crystallinity. In addition, the cytotoxicity of the anodized TiNbSn alloy was evaluated using cell lines of the osteoblast and fibroblast lineages. The antimicrobial activity of the anodic oxide alloy was assessed according to the ISO 27447 using methicillin-susceptible Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, and Escherichia coli. The anodic oxide comprised rutile and anatase titanium dioxide (TiO2) and exhibited a porous microstructure. A well-crystallized rutile TiO2 phase was observed in the anodized TiNbSn alloy. The methylene blue degradation tests under ultraviolet illumination exhibited photocatalytic activity. In antimicrobial tests, the anodized TiNbSn alloy exhibited robust antimicrobial activities under ultraviolet illumination for all bacterial species, regardless of drug resistance. Therefore, the anodized TiNbSn alloy can be used as a functional biomaterial with low Young's modulus and excellent antimicrobial activity.
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Affiliation(s)
- Yu Mori
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Satoko Fujimori
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Hiroaki Kurishima
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Hiroyuki Inoue
- Department of Materials Science, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuen-machi, Naka-ku, Sakai 599-8531, Japan
| | - Keiko Ishii
- Department of Medical Microbiology, Mycology, and Immunology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Maya Kubota
- Graduate School of Engineering, Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Kazuyoshi Kawakami
- Department of Medical Microbiology, Mycology, and Immunology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
| | - Naoko Mori
- Department of Radiology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
| | - Toshimi Aizawa
- Department of Orthopedic Surgery, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai 980-8574, Japan
| | - Naoya Masahashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
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Mori N, Mugikura S, Endo T, Endo H, Oguma Y, Li L, Ito A, Watanabe M, Kanamori M, Tominaga T, Takase K. Principal component analysis of texture features for grading of meningioma: not effective from the peritumoral area but effective from the tumor area. Neuroradiology 2023; 65:257-274. [PMID: 36044063 DOI: 10.1007/s00234-022-03045-1] [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: 05/30/2022] [Accepted: 08/23/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE To investigate whether texture features from tumor and peritumoral areas based on sequence combinations can differentiate between low- and non-low-grade meningiomas. METHODS Consecutive patients diagnosed with meningioma by surgery (77 low-grade and 28 non-low-grade meningiomas) underwent preoperative magnetic resonance imaging including T1-weighted imaging (T1WI), T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and contrast-enhanced T1WI (CE-T1WI). Manual segmentation of the tumor area was performed to extract texture features. Segmentation of the peritumoral area was performed for peritumoral high-signal intensity (PHSI) on T2WI. Principal component analysis was performed to fuse the texture features to principal components (PCs), and PCs of each sequence of the tumor and peritumoral areas were compared between low- and non-low-grade meningiomas. Only PCs with statistical significance were used for the model construction using a support vector machine algorithm. k-fold cross-validation with receiver operating characteristic curve analysis was used to evaluate diagnostic performance. RESULTS Two, one, and three PCs of T1WI, apparent diffusion coefficient (ADC), and CE-T1WI, respectively, for the tumor area, were significantly different between low- and non-low-grade meningiomas, while PCs of T2WI for the tumor area and PCs for the peritumoral area were not. No significant differences were observed in PHSI. Among models of sequence combination, the model with PCs of ADC and CE-T1WI for the tumor area showed the highest area under the curve (0.84). CONCLUSION The model with PCs of ADC and CE-T1WI for the tumor area showed the highest diagnostic performance for differentiating between low- and non-low-grade meningiomas. Neither PHSI nor PCs in the peritumoral area showed added value.
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Affiliation(s)
- Naoko Mori
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
| | - Shunji Mugikura
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan
| | - Toshiki Endo
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Neurosurgery, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Hidenori Endo
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan.,Department of Neurosurgery, Kohnan Hospital, Sendai, Japan
| | - Yo Oguma
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan
| | - Li Li
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan
| | - Akira Ito
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mika Watanabe
- Department of Anatomic Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masayuki Kanamori
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Teiji Tominaga
- Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan
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