A5040969735- MRI in cancer diagnosis
- Advanced MRI Techniques and Applications
- Prostate Cancer Diagnosis and Treatment
- Liver Disease Diagnosis and Treatment
- Hepatocellular Carcinoma Treatment and Prognosis
- Liver Disease and Transplantation
- Prostate Cancer Treatment and Research
- Urologic and reproductive health conditions
- Pancreatitis Pathology and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Pediatric Hepatobiliary Diseases and Treatments
- Lanthanide and Transition Metal Complexes
- Gallbladder and Bile Duct Disorders
- Pancreatic and Hepatic Oncology Research
- Abdominal vascular conditions and treatments
- Renal cell carcinoma treatment
- Esophageal and GI Pathology
- Advanced Neuroimaging Techniques and Applications
- Urinary and Genital Oncology Studies
- Renal and Vascular Pathologies
- Vascular Procedures and Complications
- Bladder and Urothelial Cancer Treatments
- Gastroesophageal reflux and treatments
- Cardiac Imaging and Diagnostics
- Urological Disorders and Treatments
Kawasaki Medical School
2015-2024
Mie University Hospital
2022
Kyoto University Hospital
2010-2018
Chikamori Hospital
2009-2016
Kyorin University
1990-2015
NYU Langone Health
2013
Kyoto University
2010-2012
Teikyo University
2012
New York University
2011
Osaka City University
2006
Abstract Purpose To investigate the utility of apparent diffusion coefficient (ADC) values for discriminating tumor in patients with prostate cancer from normal prostatic tissues healthy adult men, and to identify correlations between ADC histologic grade cancer. Materials Methods A total 125 male volunteers (mean age, 60 years; range, 50–86 years) 90 71 51–88 underwent diffusion‐weighted imaging (DWI) a single‐shot echo‐planar sequence using b‐factors 0 800 sec/mm 2 . was measured two...
To retrospectively evaluate the influence of postbiopsy hemorrhage on accuracy tumor detection at T2-weighted magnetic resonance (MR) imaging, dynamic contrast material-enhanced MR and diffusion-weighted (DW) imaging prostate cancer, with histologic findings as reference standard.The institutional review board approved this study waived requirement for informed consent. Forty male patients aged 62-84 years (mean age, 71 years) who had cancer underwent gland after ultrasonographically (US)...
Background Biparametric MRI (bpMRI) without dynamic contrast‐enhanced (DCE‐MRI) results in an elimination of adverse events, shortened examination time, and reduced costs, compared to multiparametric (mpMRI). The ability bpMRI detect clinically significant prostate cancer (csPC) with the Prostate Imaging Reporting Data System version 2.1 (PI‐RADS v2.1) standard mpMRI has not been studied extensively. Purpose To compare interobserver reliability diagnostic performance for detecting csPC using...
Abstract Purpose To evaluate the differences in enhancement of abdominal solid organ and major vessel on dynamic contrast‐enhanced magnetic resonance imaging (DCE‐MRI) obtained with gadolinium ethoxybenzyldiethylenetriamine pentaacetic acid (Gd‐EOB‐DTPA: EOB) diethylenetriamine (Gd‐DTPA) same patients. Materials Methods A total 13 healthy volunteers underwent repeat assessments MR examinations DCE‐MRI using either Gd‐DTPA at a dose 0.1 mmol/kg body weight or EOB 0.025 weight. DCE images were...
Prostate Cancer Detection in Patients With Total Serum Prostate-Specific Antigen Levels of 4–10 ng/mL: Diagnostic Efficacy Diffusion-Weighted Imaging, Dynamic Contrast-Enhanced MRI, and T2-Weighted ImagingTsutomu Tamada1, Teruki Sone1, Hiroki Higashi1, Yoshimasa Jo2, Akira Yamamoto1, Akihiko Kanki1 Katsuyoshi Ito1Audio Available | Share
Objective The objective of our study was to investigate tumor conspicuity and the discrimination potential for aggressiveness on diffusion-weighted magnetic resonance imaging (DW-MRI) with high b value at 3-T. Materials Methods institutional review board approved this waived requirement informed consent. A total 50 patients prostate cancer (69 foci; 48 in PZ, 20 TZ, one whole prostate) who underwent multiparametric MRI including DW-MRI (b values: 0, 1000 s/mm2 2000 s/mm2) a 3-T system were...
To identify age-related changes and differences in the diffusion of water molecules within prostate, through diffusion-weighted imaging (DWI) prostate gland healthy adult Japanese men.A total 114 male volunteers (mean age, 55 years; range, 24-81 years) underwent DWI with a single-shot echo-planar (EPI) sequence using b-factors 0 1000 seconds/mm(2). Apparent coefficient (ADC) values six locations peripheral zone (PZ) two central (CG) were measured correlations between region age examined.ADC...
To assess the accuracy of glomerular filtration rate (GFR) measurements obtained with low-contrast agent dose dynamic contrast material-enhanced magnetic resonance (MR) renography in patients liver cirrhosis who underwent routine MR imaging, urinary clearance technetium 99m ((99m)Tc) pentetic acid (DTPA) as reference standard.This HIPAA-compliant study was institutional review board approved. Written informed patient consent obtained. Twenty (14 men, six women; age range, 41-70 years; mean...
The aim of this retrospective study was to assess the enhancement patterns hepatic hemangiomas on gadoxetate disodium.A total 22 patients with 32 (23 typical type and nine high-flow type) in normal liver underwent disodium-enhanced MRI. Contrast-enhanced images were obtained before after contrast injection, including arterial phase, portal equilibrium three hepatobiliary phases (10, 15 20 minutes). Signal-to-phantom ratios vein as well lesion-to-liver contrast-to-phantom assessed.Mean...
To assess prospectively the ability of quantitative low-dose three-dimensional magnetic resonance (MR) renography to help identify cause acute graft dysfunction.This HIPAA-compliant study was approved by institutional review board, and written informed consent obtained. Between December 2001 May 2009, sixty patients with transplanted kidneys (41 men 19 women; mean age, 49 years; age range, 22-71 years) were included. Thirty-one had normal function 29 dysfunction due rejection (n = 12),...
In prostate MRI, single-shot EPI (ssEPI) DWI still suffers from distortion and blurring. Multi-shot (msEPI) overcomes the drawbacks of ssEPI DWI. The aim this article was to compare image quality diagnostic performance for clinically significant cancer (csPC) between msEPI This retrospective study included 134 patients with suspected PC who underwent 3.0 T MRI subsequent MRI-guided biopsy. Three radiologists independently assessed anatomical distortion, edge clarity, lesion conspicuity score...
Abstract Background Imipenem/cilastatin (IPM/CS) has long been administered intravenously as a carbapenem antibiotic. However, since this agent is poorly soluble in liquid, occasional reports have described its use short-acting, temporary embolic agent. The purpose of study was to elucidate the characteristics IPM/CS particles, which are thought pain-relieving effects against osteoarthritis-related pain, an Methods Three aspects were evaluated vitro: particle size; shape; and change size...
Abstract Purpose: To evaluate the incidence and predictive factors of hypervascular transformation during follow‐up “high‐risk nodules” detected in hepatobiliary phase initial Gd‐EOB‐DTPA‐enhanced MRI chronic liver disease patients. Materials Methods: A total 109 patients with who underwent several times were investigated. Of these, 43 had 76 high‐risk nodules both hypointensity hypovascularity arterial MRI. These observed until hypervascularity was detected. clinical findings compared to...
OBJECTIVE. The purpose of this study is to evaluate age-related changes in the secretory flow pancreatic juice main duct noninvasively by means nonpharmacologic cine-dynamic MRCP using spatially selective inversion recovery (IR) pulse.
The mechanisms underlying the morphological changes in liver cirrhosis remain unknown. This study aimed to clarify relationship between fibrotic hepatic morphology and portal hemodynamic using four-dimensional flow magnetic resonance imaging (MRI).Overall, 100 patients with suspected disease who underwent 3-T MRI were evaluated this retrospective study. Liver fibrosis was assessed a combination of visual assessment quantitative measures, including fibrosis-4 index aspartate...