Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Hideto Toyoshima"'
Autor:
Toshibumi Kinoshita, Yuki Shinohara, Hideto Toyoshima, Noriyuki Takahashi, Masanobu Ibaraki, Keisuke Matsubara
Publikováno v:
International Journal of Computer Assisted Radiology and Surgery
Purpose Oxygen extraction fraction (OEF) is a biomarker for the viability of brain tissue in ischemic stroke. However, acquisition of the OEF map using positron emission tomography (PET) with oxygen-15 gas is uncomfortable for patients because of the
Autor:
Takato Ishida, Mamoru Kato, Koichi Chida, Hajime Osaka, Toshibumi Kinoshita, Fumiaki Sasaki, Hideto Toyoshima
Publikováno v:
Japanese Journal of Radiological Technology. 76:26-33
Purpose The International Commission on Radiological Protection recommended that interventional radiologies (IRs) have high radiation doses and that staff may also be exposed to high doses. In the present study, we measured the radiation exposure dos
Autor:
Yoshihisa Abe, Koichi Chida, Mamoru Kato, Ken Terata, Takato Ishida, Hajime Oosaka, Hideto Toyoshima, Toshibumi Kinoshita, Fumiaki Sasaki
Publikováno v:
Radiation Protection Dosimetry. 187:361-368
Interventional radiology (IR) procedures tend to be complex, which delivers high radiation exposure to patient. In the present study, we measured the radiation exposure dose [Hp(3)] in the eye using a direct eye dosemeter placed next to the physician
Publikováno v:
Journal of Medical Imaging and Health Informatics. 9:819-823
Publikováno v:
Acta Radiologica. 60:1512-1522
BackgroundA focal brain lesion influences the function and morphology in the connected intact regions remote from it. However, it is not well documented that thalamic stroke may induce secondary de...
Publikováno v:
Journal of Radiation Research
In a previous study, we reported on a novel (prototype) real-time patient dosimeter with non-toxic phosphor sensors. In this study, we developed new types of sensors that were smaller than in the previous prototype, and clarified the clinical feasibi
Autor:
Kazuhiro Takahashi, Atsushi Umetsu, Keisuke Matsubara, Hideto Toyoshima, Toshibumi Kinoshita, Masanobu Ibaraki, Josef Pfeuffer, Hideto Kuribayashi, Kazuhiro Nakamura
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism
Pseudo-continuous arterial spin labeling (pCASL) is a completely non-invasive method of cerebral perfusion measurement. However, cerebral blood flow (CBF) quantification is hampered by arterial transit artifacts characterized by bright vascular signa
Autor:
Yongbum Lee, Yuichiro Sato, Noriyuki Takahashi, Toshibumi Kinoshita, Takato Ishida, Fumiaki Sasaki, Tomomi Ohmura, Hideto Toyoshima
Publikováno v:
Journal of Medical Imaging and Health Informatics. 8:1064-1068
Publikováno v:
Japanese Journal of Radiological Technology. 73:1125-1131
PURPOSE CT perfusion (CTP) is a powerful tool for the assessment of cerebrovascular disease. However, CTP maps are significantly different depending on CTP software and algorithm, even when using identical image data. We developed a phase-ratio image
Autor:
Yongbum Lee, Keisuke Matsubara, Yuki Shinohara, Noriyuki Takahashi, Tomomi Ohmura, Hideto Toyoshima, Toshibumi Kinoshita
Publikováno v:
Medical Imaging: Computer-Aided Diagnosis
Treatment for patients with acute ischemic stroke is most commonly determined based on findings on noncontrast computerized tomography (CT). Identifying hypoattenuation of the early ischemic changes on CT images is crucial for diagnosis. However, it