研究者詳細 - 藤井　啓輔

論文 - 藤井　啓輔

分割表示 38 件中 1 - 20 件目／全件表示 >>

Development and validation of the effective CNR analysis method for evaluating the contrast resolution of CT images.

Igarashi K, Imai K, Matsushima S, Yamauchi-Kawaura C, Fujii K

Physical and engineering sciences in medicine 2024年3月

ノイズの準理論式に基づいたCT画像のノイズ成分解析

藤井啓輔, 今井國治, 野村恵一, 村松禎久, 遠地志太

電子情報通信学会技術研究報告 124 巻 ( 103 ) 頁： 7 - 12 2023年7月

Evaluation of Apparent Noise on CT Images Using Moving Average Filters

Fujii, K; Nomura, K; Imai, K; Muramatsu, Y; Tsushima, S; Ota, H

JOURNAL OF DIGITAL IMAGING 35 巻 ( 1 ) 頁： 77 - 85 2022年2月

PATIENT-SPECIFIC ORGAN DOSE EVALUATION BASED ON MONTE CARLO SIMULATION AND DOSE METRICS IN PAEDIATRIC CHEST-ABDOMEN-PELVIS CT EXAMINATIONS

Fujii, K; Nomura, K; Muramatsu, Y; Ota, H

RADIATION PROTECTION DOSIMETRY 197 巻 ( 1 ) 頁： 46 - 53 2021年11月

MEASUREMENT OF HALF-VALUE LAYER IN COMPUTED TOMOGRAPHY SCANNERS USING LUMINESCENCE OF POLYETHERSULFONE RESIN BY X-RAY IRRADIATION

Yamauchi-Kawaura, C; Maki, E; Fujii, K; Komori, M; Imai, K

RADIATION PROTECTION DOSIMETRY 196 巻 ( 1-2 ) 頁： 26 - 33 2021年11月

Radiation Dose Reduction for Computed Tomography Localizer Radiography Using an Ag Additional Filter

Nomura, K; Fujii, K; Goto, T; Tsukagoshi, S; Ota, H; Iwabuchi, Y; Suzuki, H; Muramatsu, Y; Kobayashi, T

JOURNAL OF COMPUTER ASSISTED TOMOGRAPHY 45 巻 ( 1 ) 頁： 84 - 92 2021年1月

Correlation analysis of organ doses determined by Monte Carlo simulation with dose metrics for patients undergoing chest-abdomen-pelvis CT examinations

Fujii, K; Nomura, K; Muramatsu, Y; Goto, T; Obara, S; Ota, H; Tsukagoshi, S

PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS 77 巻頁： 1 - 9 2020年9月

DEVELOPMENT OF A JAPANESE INFANT HEAD-CHEST PHANTOM AND INVESTIGATION OF THE CURRENT STATUS OF INFANT HEAD CT EXAMINATIONS IN JAPAN

Yamauchi-Kawaura, C; Fujii, K; Yamauchi, M; Imai, K; Ikeda, M; Narai, K; Shimizu, H

RADIATION PROTECTION DOSIMETRY 188 巻 ( 1 ) 頁： 65 - 72 2020年1月

SHAPE ESTIMATION OF BOWTIE FILTERS BASED ON THE LUMINESCENCE FROM POLYETHYLENE TEREPHTHALATE RESIN BY X-RAY IRRADIATION

Yamauchi-Kawaura, C; Fujii, K; Yamauchi, M; Yamamoto, S; Kozuka, M; Ohzawa, N; Suga, N; Ito, N

RADIATION PROTECTION DOSIMETRY 185 巻 ( 4 ) 頁： 432 - 439 2019年12月

VALIDATION OF MONTE CARLO DOSE CALCULATION FOR PAEDIATRIC CT EXAMINATIONS USING TUBE CURRENT MODULATION BASED ON IN-PHANTOM DOSIMETRY 査読有り

Fujii, K; Nomura, K; Muramatsu, Y; Obara, S; Goto, T; Akahane, K; Ota, H; Tsukagoshi, S; Kusumoto, M

RADIATION PROTECTION DOSIMETRY 182 巻 ( 4 ) 頁： 508 - 517 2018年12月

MEASUREMENT OF INTERNAL RADIATION DOSE DISTRIBUTION IN CT EXAMINATIONS USING POLYETHYLENE TEREPHTHALATE RESIN

Yamauchi-Kawaura, C; Yamamoto, S; Fujii, K; Komori, M; Yamauchi, M; Ohzawa, N; Kozuka, M; Suga, N; Ito, N; Fukuyama, A

RADIATION PROTECTION DOSIMETRY 181 巻 ( 4 ) 頁： 303 - 309 2018年11月

Contrast enhancement efficacy of iodinated contrast media: Effect of molecular structure on contrast enhancement.

Imai K, Ikeda M, Satoh Y, Fujii K, Kawaura C, Nishimoto T, Mori M

European journal of radiology open 5 巻頁： 183 - 188 2018年

ORGAN DOSE EVALUATIONS BASED ON MONTE CARLO SIMULATION FOR CT EXAMINATIONS USING TUBE CURRENT MODULATION 査読有り

Fujii, K; Nomura, K; Muramatsu, Y; Obara, S; Akahane, K; Kusumoto, M

RADIATION PROTECTION DOSIMETRY 174 巻 ( 3 ) 頁： 387 - 394 2017年4月

Patient Size-Specific Analysis of Dose Indexes From CT Lung Cancer Screening 査読有り

Fujii, K; McMillan, K; Bostani, M; Cagnon, C; McNitt-Gray, M

AMERICAN JOURNAL OF ROENTGENOLOGY 208 巻 ( 1 ) 頁： 144 - 149 2017年1月

Estimation of Organ and Effective Doses for Neonate and Infant Diagnostic Cardiac Catheterizations 査読有り

KAWASAKI Toshio, FUJII Keisuke, AKAHANE Keiichi

American Journal of Roentgenology 205 巻 ( 3 ) 頁： 599-603 2015年9月

Evaluation of organ doses in adult and paediatric CT examinations based on Monte Carlo simulations and in-phantom dosimetry 査読有り

FUJII Keisuke, NOMURA Keiichi, MURAMATSU Yoshihisa, TAKAHASHI Keisuke, OBARA Satoshi, AKAHANE Keiichi, SATAKE Mitsuo

Radiation Protection Dosimetry 165 巻 ( 1-4 ) 頁： 166-171 2015年7月

Development of age-specific Japanese head phantoms for dose evaluation in paediatric head CT examinations 査読有り

YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke, AKAHANE Keiichi, YAMAUCHI Masato, NARAI Kazuhiro, AOYAMA Takahiko, KATSU Toshihiko, OBARA Satoshi, IKEDA Mitsuru

Radiation Protection Dosimetry 163 巻 ( 2 ) 頁： 188-201 2015年2月

Effective and organ doses using helical 4DCT for thoracic and abdominal therapies 査読有り

MATSUZAKI Yuka, FUJII Keisuke, KUMAGAI Motoki, TSURUOKA Ichiro, MORI Shinichiro

Journal of Radiation Research 54 巻 ( 5 ) 頁： 962-970 2013年9月

Organ dose and effective dose estimation in paediatric chest radiographic examinations by using pin silicon photodiode dosemeters 査読有り

KAWASAKI Toshio, AOYAMA Takahiko, YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke, KOYAMA Shuji

Radiation Protection Dosimetry 154 巻 ( 3 ) 頁： 314-319 2013年5月

Comparison of radiation doses between newborns and 6-y-old children undergoing head, chest and abdominal CT examinations: a phantom study 査読有り

SUGIMOTO Naruto, AOYAMA Takahiko, KOYAMA Shuji, YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke

Radiation Protection Dosimetry 153 巻 ( 1 ) 頁： 85-91 2013年1月

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