Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB) 32(7) 905-13 2016年7月 [査読有り]
PURPOSE: Patient dose estimation in X-ray computed tomography (CT) is generally performed by Monte Carlo simulation of photon interactions within anthropomorphic or cylindrical phantoms. An accurate Monte Carlo simulation requires an understanding...
Y. Asada S. Suzuki K. Minami S. Shirakawa M. Kobayashi
JOURNAL OF RADIOLOGICAL PROTECTION 36(2) N8-N18 2016年6月 [査読有り]
With the objective of reducing patient exposure to radiation, we conducted a questionnaire survey regarding radiographic conditions in 2014. Here we report estimates of dose exposure in general radiography and mammography through an investigation ...
The purpose of this study was to evaluate the maternal and foetal effective doses during foetal computed tomography (CT) and to compare the radiation dose, dose profile and image noise on 80-row CT in helical scanning mode and 320-row CT in wide-v...
Progress in Biomedical Optics and Imaging - Proceedings of SPIE 9783 2016年 [査読有り]
The aim of this study was to propose a calibration method for small dosimeters to measure absorbed doses during dual- source dual-energy computed tomography (DECT) and to compare the axial dose distribution, eye lens dose, and image noise level be...
Yuta Matsunaga Ai Kawaguchi Kenichi Kobayashi Masanao Kobayashi Yasuki Asada Kazuyuki Minami Shoichi Suzuki Koichi Chida
The British journal of radiology 89(1058) 20150671-20150671 2016年 [査読有り]
OBJECTIVE: The aims of this study were to estimate the effective radiation doses from CT examinations of both adults and children in Japan and to study the impact of various scan parameters on the effective doses. METHODS: A questionnaire, which c...
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