Kazuhiro Katahira

ORCID: 0000-0002-3328-9993
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • MRI in cancer diagnosis
  • Advanced X-ray and CT Imaging
  • Radiation Dose and Imaging
  • Advanced MRI Techniques and Applications
  • Cardiac Imaging and Diagnostics
  • Prostate Cancer Diagnosis and Treatment
  • Medical Imaging Techniques and Applications
  • Prostate Cancer Treatment and Research
  • Gallbladder and Bile Duct Disorders
  • Bone and Joint Diseases
  • Radiomics and Machine Learning in Medical Imaging
  • Knee injuries and reconstruction techniques
  • Shoulder and Clavicle Injuries
  • Cerebrovascular and Carotid Artery Diseases
  • Atomic and Subatomic Physics Research
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Orthopedic Surgery and Rehabilitation
  • Venous Thromboembolism Diagnosis and Management
  • Shoulder Injury and Treatment
  • Sarcoma Diagnosis and Treatment
  • Cardiovascular Disease and Adiposity
  • Central Venous Catheters and Hemodialysis
  • Cardiovascular Function and Risk Factors
  • Bone Tumor Diagnosis and Treatments
  • Dental Radiography and Imaging

Saiseikai Kumamoto Hospital
2008-2025

Kumamoto University
2000-2017

Kumamoto Chuo Hospital
2007-2017

Kumamoto Medical Center
2017

National Hospital
1996-1998

Detection of hepatocellular carcinoma arising in cirrhotic livers: comparison gadolinium- and ferumoxides-enhanced MR imaging.Y Tang, Y Yamashita, A Arakawa, T Namimoto, K Mitsuzaki, Abe, Katahira M TakahashiAudio Available | Share

10.2214/ajr.172.6.10350287 article EN American Journal of Roentgenology 1999-06-01

Objectives: This study evaluated the efficacy of dual-layer spectral detector computed tomography (DLCT) for detecting early ischemic changes (EICs) in patients with acute stroke (AIS), focusing on electron density (ED) and effective atomic number (effective Z) imaging. Material Methods: retrospective included 15 (mean age: 76.5 ± 9.8 years) AIS who underwent non-contrast (CT) DLCT magnetic resonance imaging (MRI) same day. Quantitative analysis was performed to compare conventional CT, ED,...

10.25259/jcis_171_2024 article EN cc-by-nc-sa Journal of Clinical Imaging Science 2025-03-03

Abstract Purpose To determine whether quantitative diffusion‐weighted imaging (DWI) is useful for characterizing poorly contrast‐enhanced and T2‐prolonged bone masses. Materials Methods We studied 20 masses that showed high signal intensity on T2‐weighted images poor enhancement T1‐weighted images. These included eight solitary cysts, five fibrous dysplasias, seven chondrosarcomas. analyze diffusion changes we calculated the apparent coefficient (ADC) each lesion. Results The ADC values of...

10.1002/jmri.20512 article EN Journal of Magnetic Resonance Imaging 2006-02-10

To assess the usefulness of half-Fourier rapid acquisition with relaxation enhancement (RARE) magnetic resonance cholangiopancreatography (MRCP) for evaluation postoperative changes in pancreaticobiliary ductal system.The study included 34 patients (20 men, 14 women; mean age, 65.5 years) who underwent surgery system. Half-Fourier RARE MRCP images were obtained after surgery. Qualitative ratings by two observers depiction anatomy and artifacts, as well analysis complications. Direct...

10.1148/radiology.215.1.r00ap0281 article EN Radiology 2000-04-01

Objective: The objective of the study was to investigate effects low-tube-voltage computed tomography (CT) venography on qualitative and quantitative image parameters radiation dose. Methods: Eighty-eight studies 84 patients underwent pelvic lower-extremity CT under protocol A (standard 120 kV with 150 mL contrast material, n = 44) or B (80 100 a 64-detector scanner. We compared dose length product in 2 protocols. Two blinded observers measured attenuation veins, noise, contrast-to-noise...

10.1097/rct.0b013e31822a563d article EN Journal of Computer Assisted Tomography 2011-09-01

Model-based type iterative reconstruction algorithms with fast times are now available. The clinical feasibility of their has not been evaluated adequately.To investigate the effects model-based reconstruction, i.e. model (IMR), time on qualitative and quantitative image quality at low-dose chest computed tomography (CT).Thirty-one patients undergoing screening CT were enrolled. Images reconstructed using filtered back projection (FBP), hybrid (HIR), IMR algorithms. attenuation noise for all...

10.1177/0284185115575537 article EN Acta Radiologica 2015-03-27
Coming Soon ...