A5084524554- Hormonal Regulation and Hypertension
- Adrenal and Paraganglionic Tumors
- Cardiac Imaging and Diagnostics
- MRI in cancer diagnosis
- Radiomics and Machine Learning in Medical Imaging
- Advanced MRI Techniques and Applications
- Adrenal Hormones and Disorders
- Aortic aneurysm repair treatments
- Aortic Disease and Treatment Approaches
- Medical Imaging Techniques and Applications
- Renal and Vascular Pathologies
- Pulmonary Hypertension Research and Treatments
- Cardiac Valve Diseases and Treatments
- Cerebrovascular and Carotid Artery Diseases
- Pancreatic and Hepatic Oncology Research
- Advanced X-ray and CT Imaging
- Cardiovascular, Neuropeptides, and Oxidative Stress Research
- Intracranial Aneurysms: Treatment and Complications
- Cardiovascular Function and Risk Factors
- Traumatic Brain Injury and Neurovascular Disturbances
- Chemotherapy-induced cardiotoxicity and mitigation
- Renal cell carcinoma treatment
- Radiation Dose and Imaging
- Gallbladder and Bile Duct Disorders
- Pancreatitis Pathology and Treatment
Tohoku University
2016-2025
Tohoku University Hospital
2016-2025
Tokyo Medical University
2022-2024
National Cerebral and Cardiovascular Center
1997-2022
Tokyo Medical University Hospital
2022
Bridge University
2017-2019
Leiden University Medical Center
2017
KU Leuven
2017
Tohoku Medical and Pharmaceutical University
2015
University of Michigan
2015
Abstract Purpose Herein, we assessed the accuracy of large language models (LLMs) in generating responses to questions clinical radiology practice. We compared performance ChatGPT, GPT-4, and Google Bard using from Japan Radiology Board Examination (JRBE). Materials methods In total, 103 JRBE 2022 were used with permission Radiological Society. These categorized by pattern, required level thinking, topic. McNemar’s test was compare proportion correct between LLMs. Fisher’s exact assess GPT-4...
OBJECTIVE. The aim of our study was to evaluate the efficacy MDCT angiography in assessment lower limb peripheral arterial occlusive disease.
MRI of Cardiac Sarcoidosis: Basal and Subepicardial Localization Myocardial Lesions Their Effect on Left Ventricular FunctionAzusa Ichinose1, Hiroki Otani2, Minako Oikawa2, Kei Takase1, Haruo Saito1, Hiroaki Shimokawa2 Shoki Takahashi1Audio Available | Share
To evaluate the correlation between apparent diffusion coefficient ( ADC ) values and Ki-67 labeling index for luminal-type (estrogen receptor-positive) breast cancer not otherwise specified NOS diagnosed by means of biopsy.The institutional review board approved this retrospective study, requirement informed consent was waived. Between December 2009 2012, 86 patients with lesions invasive underwent magnetic resonance imaging, including dynamic contrast material-enhanced imaging...
Adrenal venous sampling is currently the only reliable method to distinguish unilateral from bilateral diseases in primary aldosteronism. In this study, we attempted determine whether peripheral plasma levels of 18-oxocortisol (18oxoF) and 18-hydroxycortisol could contribute clinical differentiation between aldosteronoma hyperaldosteronism 234 patients with aldosteronism, including computed tomography (CT)–detectable (n=113) (n=121), all whom underwent CT adrenal sampling. All aldosteronomas...
In primary aldosteronism (PA), glomerular hyperfiltration due to excessive aldosterone is considered underestimate actual renal damage.Our objectives were determine the prevalence of chronic kidney disease (CKD) in PA and identify predictors decreasing estimated filtration rate (eGFR) after treatment.This was a 12-month prospective study patients with treated at Tohoku University Hospital.All according results adrenal venous sampling; 102 aldosterone-producing adenoma underwent...
This paper is part of the international consensus guidelines on chronic pancreatitis, presenting for interventional endoscopy.An working group with experts endoscopy evaluated 26 statements generated from evidence 9 clinically relevant questions. The Grading Recommendations Assessment, Development, and Evaluation approach was used to evaluate level evidence. To determine agreement, a nine-point Likert scale voting statements.Strong obtained 15 relating nine questions including recommendation...
PURPOSE: To assess the ability of multi–detector row helical computed tomography (CT) to depict artery Adamkiewicz. MATERIALS AND METHODS: Seventy patients with vascular diseases underwent CT entire aorta and iliac arteries. The Adamkiewicz was examined on multiplanar curved planar reformation images cine-mode displays. visualization Adamkiewicz, as well its branching level side origin, investigated. RESULTS: In 63 (90%) 70 patients, at least a single clearly visualized from intervertebral...
Adrenal venous sampling (AVS) is critical to determine the subtype of primary aldosteronism (PA). Central AVS (C-AVS)--that is, collection effluents from bilateral adrenal central veins (CV)--sometimes does not allow differentiation between aldosterone-producing adenomas (APA) and idiopathic hyperaldosteronism. To establish best treatment course, we have developed segmental (S-AVS); that collect tributaries CV intra-adrenal sources aldosterone overproduction. We then evaluated clinical...
Abstract Stress is a known trigger of irritable bowel syndrome (IBS) and exacerbates its gastrointestinal symptoms. However, underlying the physiological mechanism remains unknown. Here, we investigated hypothalamic–pituitary–adrenal (HPA) axis, colonic motility, autonomic responses to corticotropin-releasing hormone (CRH) administration as well brain activity alterations in IBS. The study included 28 IBS patients 34 age sex-matched healthy control subjects. demonstrated greater...
Background:It remains to be determined whether balloon pulmonary angioplasty (BPA) improves biventricular cardiac functions and flow in patients with chronic thromboembolic hypertension (CTEPH).Methods Results:We enrolled 30 consecutive inoperable CTEPH who underwent BPA, carried out serial magnetic resonance imaging (CMR; M/F, 9/21; median age, 65.2 years). No patient died during the treatment or follow-up period. BPA significantly improved WHO functional class (III/IV, 83.0 4.0%), 6-min...
Patients with pancreatic cancer have a poor prognosis, therefore identifying particular tumor characteristics associated prognosis is important. This study aims to investigate the utility of radiomics machine learning using 18F-fluorodeoxyglucose (FDG)-PET in patients cancer. We enrolled 161 underwent pretreatment FDG-PET/CT. The area primary was semi-automatically contoured threshold 40% maximum standardized uptake value, and 42 PET features were extracted. To identify relevant parameters...
Peripheral 18-oxocortisol (18oxoF) level could contribute to the detection of aldosterone-producing adenoma (APA) in patients with primary aldosteronism. However, peripheral 18oxoF varies among such patients, which is a big drawback concerning its clinical application. We studied 48 cases APA, 35 harboring KCNJ5 mutation, clarify significance and pathological parameters about 18oxoF. concentration ranged widely from 0.50 183.13 ng/dL correlated positively intratumoral areas stained for...
To evaluate the diagnostic performance of self-attention-based model, termed variable Vision Transformer (vViT), in task predicting grade diffuse glioma based on 2021 World Health Organization (WHO) central nervous system (CNS) tumor classification. This cross-sectional study analyzed adult patients with histopathologically confirmed glioma, following WHO CNS We used age, sex, radiomic features, and four MRI sequences to predict gliomas. As binary classifications, we constructed three...
Abstract Purpose This study aimed to perform multimodal analysis by vision transformer (vViT) in predicting O6-methylguanine-DNA methyl transferase (MGMT) promoter status among adult patients with diffuse glioma using demographics (sex and age), radiomic features, MRI. Methods The training test datasets contained 122 1,570 images 30 484 images, respectively. features were extracted from enhancing tumors (ET), necrotic tumor cores (NCR), the peritumoral edematous/infiltrated tissues (ED)...
To retrospectively determine whether major portal venous variation was more frequently associated with biliary variants, consideration of the types and frequencies tract variations in right left liver lobes.Before undergoing computed tomographic (CT) cholangiography, patients gave informed consent. The retrospective research protocol approved, consent waived by ethics committee. Forty-four aged 29-80 years who underwent multi-detector row CT cholangiography had a vein which main diverged...
Despite similar QRS morphology, idiopathic repetitive monomorphic ventricular tachyarrhythmias (VTs) of left outflow tract (LVOT) are known to have the variants different adjacent origins, including aorto-mitral continuity (AMC), anterior site around mitral annulus (MA), aortic sinus cusps (ASC), and epicardium. However, electrocardiographic characteristics those previously not been evaluated fully.Based on mapping successful ablation in 45 consecutive patients with LVOT-VTs, we classified...
The purpose of our study was to determine how frequently the right adrenal vein could be unequivocally identified on MDCT and spectrum anatomic variations seen in vein.Contrast-enhanced performed 104 patients with thoracoabdominal vascular disease using an 8-MDCT scanner. Both axial multiplanar images were reviewed by two radiologists. following points regarding evaluated: degree visualization; relationship accessory hepatic or other veins; anatomy, including location orifice relation...
To retrospectively evaluate the accuracy of multi-detector row helical computed tomography (CT) with intravenous contrast material and without oral for depiction perforated appendicitis.This study was approved by institutional review board; informed consent waived. CT images in 102 patients (60 male patients, 42 female patients; age range, 4-82 years; mean age, 37.3 years) surgically pathologically proved appendicitis who were examined between January 2000 December 2002 reviewed. Original...