A5038289169- Cardiac Imaging and Diagnostics
- Advanced X-ray and CT Imaging
- Advanced MRI Techniques and Applications
- Aortic Disease and Treatment Approaches
- Aortic aneurysm repair treatments
- Radiation Dose and Imaging
- Cerebrovascular and Carotid Artery Diseases
- Medical Imaging Techniques and Applications
- Cardiac Valve Diseases and Treatments
- Coronary Artery Anomalies
- Congenital Heart Disease Studies
- Cardiovascular Function and Risk Factors
- Infectious Aortic and Vascular Conditions
- Coronary Interventions and Diagnostics
- Acute Ischemic Stroke Management
- Intracranial Aneurysms: Treatment and Complications
- Cardiac Structural Anomalies and Repair
- Radiation Detection and Scintillator Technologies
- Advanced Radiotherapy Techniques
- Cardiac Arrhythmias and Treatments
- Infective Endocarditis Diagnosis and Management
- Peripheral Artery Disease Management
- Atomic and Subatomic Physics Research
- Vascular anomalies and interventions
- Cardiac electrophysiology and arrhythmias
Iwate Medical University
2016-2025
Japanese Circulation Society
2023
Society for Vascular Surgery
2023
University of British Columbia
2021
St. Paul's Hospital
2021
Suzuki (Japan)
2021
Showa University
2020
Jikei University School of Medicine
2020
The Japanese Society of Gastroenterological Surgery
2020
National Institutes of Health
2017
Abstract Aims To evaluate the diagnostic power of integrating results computed tomography angiography (CTA) and CT myocardial perfusion (CTP) to identify coronary artery disease (CAD) defined as a flow limiting stenosis causing defect by single photon emission (SPECT). Methods We conducted multicentre study accuracy integrated CTA–CTP for identification patients with flow-limiting CAD ≥50% invasive (ICA) corresponding deficit on stress (SPECT/MPI). Sixteen centres enroled 381 who underwent...
Purpose To compare the prognostic importance (time to major adverse cardiovascular event [MACE]) of combined computed tomography (CT) angiography and CT myocardial stress perfusion imaging with that invasive coronary (ICA) single photon emission imaging. Materials Methods This study was approved by all institutional review boards, written informed consent obtained. Between November 2009 July 2011, 381 participants clinically referred for ICA aged 45–85 years were enrolled in Combined...
It is important to identify the artery of Adamkiewicz in patients with thoracoabdominal aortic aneurysm aid surgical planning and prevent postoperative paraplegia or paraparesis. However, difficult visualize impossible very dangerous evaluate selective intercostal lumbar angiography. The feasibility, advantages, limitations magnetic resonance (MR) angiography computed tomographic (CT) preoperative assessment were evaluated 30 aneurysm. Initial results indicate that MR CT are safe, effective,...
The purpose of the study was to investigate patient characteristics associated with image quality and their impact on diagnostic accuracy MDCT for detection coronary artery stenosis.Two hundred ninety-one patients a calcification (CAC) score <or=600 Agatston units (214 men 77 women; mean age, 59.3+/-10.0 years [SD]) were analyzed. An overall derived using an ordinal scale. quantitative detect significant (>or=50%) stenoses assessed angiography (QCA) per vessel modified 19-segment model....
This study was conducted to assess the diagnostic value of cardiac CT for evaluation patients with bicuspid aortic valve disease.Fifty consecutive stenosis who underwent surgical repair between September 2005 and November 2006 were examined by ECG-gated echocardiography. A 64-MDCT scanner used. The image findings regarding number leaflets (bicuspid or tricuspid) compared against intraoperative statistically analyzed one-way univariate analysis variance. area (AVA) also measured...
Purpose To identify the body size parameter that exhibits best correlation with aortic and hepatic enhancement at dynamic computed tomography (CT) in a large patient population enrolled multicenter study. Materials Methods This prospective study was approved by ethics committee of each 31 participating institutions where 1342 patients were between April 2012 September 2013. All provided either written or oral informed consent. underwent CT, which included preenhanced, arterial phase (HAP),...
The Japanese Circulation Society appointed a committee to develop guidelines for the prevention, diagnosis and management of infective endocarditis in Japan. In making such guidelines, required information on current clinical characteristics therefore performed nationwide questionnaire survey cases from 2000 2001. total, data were received 848 277 817 hospitals surveyed. Mean age was 55+/-18 years most patients aged their 50 s or 60 s; 53.9% had unknown origin (without any prior predisposing...
Background CT allows evaluation of atherosclerosis, coronary stenosis, and myocardial ischemia. Data on the characterization ischemia no obstructive stenosis (INOCA) at remain limited. Purpose This was an observational study to describe prevalence INOCA defined angiography with perfusion imaging associated clinical atherosclerotic characteristics. The analysis also performed for combination invasive (ICA) SPECT as a secondary aim. Materials Methods prospective CORE320 (ClinicalTrials.gov:...
We aimed to compare the radiation dose and image quality of a low-dose abdominal computed tomography (CT) protocol reconstructed with deep learning reconstruction (DLR) those routine-dose hybrid-iterative reconstruction. This retrospective study enrolled 71 patients [61 men; average age, 71.9 years; mean body mass index (BMI), 24.3 kg/m2] who underwent both CT DLR [advanced intelligent clear-IQ engine (AiCE)] [adaptive iterative reduction 3D (AIDR 3D)]. Radiation parameters included volume...
The oxygen extraction fraction (OEF) is an effective metric to evaluate metabolic reserve in chronic ischemia. However, OEF considered be accurately measured only when using positron emission tomography (PET). Thus, we investigated whether maps generated by magnetic resonance quantitative susceptibility mapping (QSM) at 7 Tesla enabled detection of changes compared with those obtained PET.Forty-one patients stenosis/occlusion the unilateral internal carotid artery or middle cerebral were...