Updated on 2024/10/28

写真a

 
FUJII Keisuke
 
Organization
Graduate School of Medicine Lecturer
Graduate School
Graduate School of Medicine
Undergraduate School
School of Health Sciences
Title
Lecturer

Degree 1

  1. 博士(医療技術学), 名古屋大学, 2010年3月 ( 2010.3   名古屋大学 ) 

Research Interests 2

  1. radiation dosimetry

  2. Radiation protecttion in medicine

Research Areas 1

  1. Others / Others  / 医学物理学・放射線技術学

Current Research Project and SDGs 1

  1. 成人および小児X線CT検査における被ばく線量評価と防護の最適化に関する研究

Awards 1

  1. 100th JSMP conference poster award

    2010.9  

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    Country:Japan

 

Papers 38

  1. 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     2024.3

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    Language:English  

    DOI: 10.1007/s13246-024-01400-5

    PubMed

  2. 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   Vol. 124 ( 103 ) page: 7 - 12   2023.7

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (conference, symposium, etc.)  

  3. 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   Vol. 35 ( 1 ) page: 77 - 85   2022.2

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  4. 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   Vol. 197 ( 1 ) page: 46 - 53   2021.11

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  5. 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   Vol. 196 ( 1-2 ) page: 26 - 33   2021.11

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  6. 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   Vol. 45 ( 1 ) page: 84 - 92   2021.1

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  7. 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   Vol. 77   page: 1 - 9   2020.9

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  8. 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   Vol. 188 ( 1 ) page: 65 - 72   2020.1

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  9. 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   Vol. 185 ( 4 ) page: 432 - 439   2019.12

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  10. Validation of Monte Carlo dose calculation for paediatric CT examinations using tube current modulation based on in-phantom dosimetry Reviewed

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Satoshi Obara, Takahiro Goto, Keiichi Akahane, Hiroyuki Ota, Shinsuke Tsukagoshi, Masahiko Kusumoto

    Radiation Protection Dosimetry   Vol. 182 ( 4 ) page: 508 - 517   2018.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1093/rpd/ncy109

    Web of Science

    PubMed

  11. 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   Vol. 181 ( 4 ) page: 303 - 309   2018.11

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  12. 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   Vol. 5   page: 183 - 188   2018

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  13. Organ dose evaluations based on Monte Carlo simulation for CT examinations using tube current modulation Reviewed

    FUJII Keisuke, NOMURA Keiichi, MURAMATSU Yoshihisa, OBARA Satoshi, AKAHANE Keiichi, KUSUMOTO Masahiko

    Radiation Protection Dosimetry   Vol. 174 ( 3 ) page: 387 - 394   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 27342451

    DOI: 10.1093/rpd/ncw144

    Web of Science

    PubMed

  14. Patient size specific analysis of dose indexes from CT lung cancer screening Reviewed

    FUJII Keisuke, MCMILLAN Kyle, BOSTANI Maryam, CAGNON Christopher, MCNITT-GRAY Michael

    American Journal of Roentgenology   Vol. 208 ( 1 ) page: 144 - 149   2017.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 27726409

    DOI: 10.2214/AJR.16.16082

    Web of Science

    PubMed

  15. Estimation of Organ and Effective Doses for Neonate and Infant Diagnostic Cardiac Catheterizations Reviewed

    KAWASAKI Toshio, FUJII Keisuke, AKAHANE Keiichi

    American Journal of Roentgenology   Vol. 205 ( 3 ) page: 599-603   2015.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 26295648

    DOI: 10.2214/AJR.14.13852

  16. Evaluation of organ doses in adult and paediatric CT examinations based on Monte Carlo simulations and in-phantom dosimetry Reviewed

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

    Radiation Protection Dosimetry   Vol. 165 ( 1-4 ) page: 166-171   2015.7

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 25848103

    DOI: 10.1093/rpd/ncv074

  17. Development of age-specific Japanese head phantoms for dose evaluation in paediatric head CT examinations Reviewed

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

    Radiation Protection Dosimetry   Vol. 163 ( 2 ) page: 188-201   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 24821932

    DOI: 10.1093/rpd/ncu155

  18. Effective and organ doses using helical 4DCT for thoracic and abdominal therapies Reviewed

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

    Journal of Radiation Research   Vol. 54 ( 5 ) page: 962-970   2013.9

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 23603303

    DOI: 10.1093/jrr/rrt024

  19. Organ dose and effective dose estimation in paediatric chest radiographic examinations by using pin silicon photodiode dosemeters Reviewed

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

    Radiation Protection Dosimetry   Vol. 154 ( 3 ) page: 314-319   2013.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    Pubmed ID: 23019596

    DOI: 10.1093/rpd/ncs251

  20. Comparison of radiation doses between newborns and 6-y-old children undergoing head, chest and abdominal CT examinations: a phantom study Reviewed

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

    Radiation Protection Dosimetry   Vol. 153 ( 1 ) page: 85-91   2013.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 22645383

    DOI: 10.1093/rpd/ncs085

  21. 診断X線検査による乳幼児, 小児, 成人の被ばく線量-X線CTの場合 Reviewed

    青山隆彦, 小山修司, 川浦稚代, 杉本成人, 藤井啓輔, 瀬口繁信, 川崎稔生

    保健物理   Vol. 47 ( 4 ) page: 270-281   2012.12

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    Language:Japanese  

  22. 診断X線検査による乳幼児, 小児, 成人の被ばく線量-X線単純撮影の場合 Reviewed

    青山隆彦, 小山修司, 川浦稚代, 杉本成人, 藤井啓輔, 川崎稔生

    保健物理   Vol. 47 ( 2 ) page: 130-140   2012.6

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    Language:Japanese  

  23. Evaluation of organ doses in CT examinations with an infant anthropomorphic phantom Reviewed

    FUJII Keisuke, AKAHANE Keiichi, MIYAZAKI Osamu, HORIUCHI Tetsuya, SHIMADA Ayano, NAGAMATSU Hiroshi, YAMAUCHI Masato, YAMAUCHI-KAWAURA Chiyo, KAWASAKI Toshio

    Radiation Protection Dosimetry   Vol. 147 ( 1-2 ) page: 151-155   2011.9

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 21743079

    DOI: 10.1093/rpd/ncr289

  24. Nationwide survey on pediatric CT among children of public health and school nurses to examine a possibility for a follow-up study on radiation effects Reviewed

    ONO Kouji, BAN Nobihiko, OJIMA Mitsuaki, YOSHINAGA Shinji, AKAHANE Keiichi, FUJII Keisuke, et al.

    Radiation Protection Dosimetry   Vol. 146 ( 1-3 ) page: 260-262   2011.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 21543349

    DOI: 10.1093/rpd/ncr165

  25. Dose measurement for medical staff with glass dosemeters and thermoluminescence dosemeters during 125I brachytherapy for prostate cancer Reviewed

    FUJII Keisuke, KO Susumu, NAKO Yasunobu, TONARI Ayako, NISHIZAWA Kanae, AKAHANE Keiichi, TAKAYAMA Makoto

    Radiation Protection Dosimetry   Vol. 144 ( 1-4 ) page: 459-463   2011.3

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 21212076

    DOI: 10.1093/rpd/ncq572

  26. Radiation dose evaluation in multidetector-row CT imaging for acute stroke with an anthropomorphic phantom Reviewed

    YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke, YAMAUCHI Masato, KOYAMA Shuji

      Vol. 83 ( 996 ) page: 1029-1041   2010.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 21088088

  27. Patient radiation dose in prospectively gated axial CT coronary angiography and retrospectively gated helical technique with a 320-detector row CT scanner Reviewed

    SEGUCHI Shigenobu, AOYAMA Takahiko, KOYAMA Shuji, YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke

      Vol. 37 ( 11 ) page: 5579-5585   2010.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 21158269

    DOI: 10.1118/1.3496985

  28. Radiation dose evaluation in head and neck MDCT examinations with a 6-year-old child anthropomorphic phantom Reviewed

    YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke, AOYAMA Takahiko, KOYAMA Shuji, YAMAUCHI Masato

    Pediatric Radiology   Vol. 40 ( 7 ) page: 1010-1018   2010.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 20066408

    DOI: 10.1007/s00247-009-1495-z

  29. 市中病院におけるMDCTを用いた肺がんドック検診 Reviewed

    宮本忠明, 松本 徹, 加藤 肇, 加藤伸次, 大竹一成, 佐藤 元, 西澤かな枝, 幸 進, 藤井啓輔, 和田真一

    CT検診   Vol. 17 ( 2 ) page: 71-78   2010.5

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  30. Radiation dose evaluation in 64-slice CT examinations with adult and paediatric anthropomorphic phantoms Reviewed

    FUJII Keisuke, AOYAMA Takahiko, YAMAUCHI-KAWAURA Chiyo, KOYAMA Shuji, YAMAUCHI Masato, KO Susumu, AKAHANE Keiichi, NISHIZAWA Kanae

    British Journal of Radiology   Vol. 82 ( 984 ) page: 1010-1018   2009.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 19934069

    DOI: 10.1259/bjr/13320880

  31. Evaluation of radiation doses from MDCT-imaging in otolaryngology Reviewed

    YAMAUCHI-KAWAURA Chiyo, FUJII Keisuke, AOYAMA Takahiko, YAMAUCHI Masato, KOYAMA Shuji

    Radiation Protection Dosimetry   Vol. 136 ( 1 ) page: 38-44   2009.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 19617599

    DOI: 10.1093/rpd/ncp138

  32. Evaluation of patient dose for barium enemas and CT colonography in Japan Reviewed

    HIROFUJI Yoshiaki, AOYAMA Takahiko, KOYAMA Shuji, KAWAURA Chiyo, FUJII Keisuke

    British Journal of Radiology   Vol. 82 ( 975 ) page: 219-227   2009.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 19064598

    DOI: 10.1259/bjr/18915538

  33. Evaluation of exposure dose to patients undergoing catheter ablation procedures - a phantom study Reviewed

    SEGUCHI Shigenobu, AOYAMA Takahiko, KOYAMA Shuji, KAWAURA Chiyo, FUJII Keisuke

    European Radiology   Vol. 18 ( 11 ) page: 2559-2567   2008.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 18491105

    DOI: 10.1007/s00330-008-1025-7

  34. Comparative evaluation of organ and effective doses for paediatric patients with those for adults in chest and abdominal CT examinations Reviewed

    FUJII Keisuke, AOYAMA Takahiko, KOYAMA Shuji, KAWAURA Chiyo

    British Journal of Radiology   Vol. 80 ( 956 ) page: 657-667   2007.8

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

    PubMed ID: 17762056

    DOI: 10.1259/bjr/97260522

  35. CT被曝の評価と問題点 Reviewed

    小山修司, 青山隆彦, 川浦稚代, 藤井啓輔

    臨床放射線   Vol. 51 ( 13 ) page: 1811-1819   2006.12

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  36. Patient exposure dose delivered by modern multi-detector helical computed tomography

    KOYAMA Shuji, FUJII Keisuke, AOYAMA Takahiko, KAWAURA Chiyo

    Proceedings of the Second Asian and Oceanic Congress for Radiation Protection     page: 1376-1379   2006.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  37. Spherical photodiode dosimeter for x-rays and its application to the measurement of exposure dose in pediatric CT examinations Reviewed

    FUJII Keisuke, AOYAMA Takahiko, KOYAMA Shuji, KAWAURA Chiyo, ACHIWA Masataka

    KEK proceedings     page: 126-135   2005.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  38. Organ and Effective dose evaluation for pediatric and adult patients undergoing CT examinations based on the dosimetry within anthropomorphic phantoms

    AOYAMA Takahiko, KOYAMA Shuji, KAWAURA Chiyo, FUJII Keisuke

    Biomedizinische Technik   Vol. 50 ( 2 ) page: 1290-1291   2005.9

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    Language:English   Publishing type:Research paper (scientific journal)  

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Books 2

  1. 低線量肺がんCT検診の知識と実務 改訂2版

    山口 功、村松 禎久、花井 耕造、長尾 啓一 編) 猪川 弘泰、牛尾 哲敏、柿沼 龍太郎、黒木 幹夫、五味 志穂、塚越 伸介、津田 雪裕、中村 義正、東村 享冶、藤井 啓輔、村田 喜代史、村野 剛志( Role: Joint author)

    株式会社 オーム社  2013.12 

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    Language:Japanese

  2. 低線量肺がんCT検診の知識と実務

    山口 功,村松禎久,花井耕造,長尾啓一, 藤井啓輔 他( Role: Joint author)

    オーム社  2010.10  ( ISBN:978-4-274-20942-0

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    Language:Japanese

Presentations 75

  1. 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 イメージ・メディア・クオリティ研究会  2024.7.12 

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    Event date: 2024.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  2. Patient-specific analysis of organ doses and image quality in abdominal single energy and dual energy CT examinations International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Yuichi NagaHiroyuki Ota, Masafumi Shinozaki, So Tsushima, Hiroki Taguchi,

    Annual Meeting of Radiological Society of North America (RSNA) 2023   2023.11.30 

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    Event date: 2023.11

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  3. Super-high-resolution abdominal imaging using CZT based photon counting CT with deep learning reconstruction: quantitative study and first clinical impression International conference

    Ken Hirayama, Keisuke Fujii, Tomoaki Sasaki, Megumi Nishigaki, Yutaka Chiba, Keiichi Nomura, Saeko Mochinaga, Yoshihisa. Muramatsu, Hiroki Taguchi, Tatsushi Kobayashi

    Annual Meeting of Radiological Society of North America (RSNA) 2023  2023.11.26 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Chicago   Country:United States  

  4. High z-axis resolution imaging using CZT-based photon counting CT: quantitative study and first clinical trial International conference

    Saeko Mochinaga, Keiichi Nomura, Ken Hirayama, Keisuke Fujii, Tomoaki Sasaki, Megumi Nishigaki, Yutaka Chiba, Yoshihisa Muramatsu, Hiroki Taguchi, Tatsushi Kobayashi

    Annual Meeting of Radiological Society of North America (RSNA) 2023   2023.11.26 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Chicago   Country:United States  

  5. Super-High-Resolution Chest Imaging using CZT-Based Photon Counting CT: Performance Characterization and First Clinical Trial International conference

    Keiichi Nomura, Keisuke Fujii, Tomoaki Sasaki, Zhou Yu, Megumi Nishigaki, Yutaka Chiba, Ken Hirayama, Saeko Mochinaga, Yoshihisa Muramatsu, Hiroki Taguchi, Tatsushi Kobayashi

    Annual Meeting of Radiological Society of North America (RSNA) 2023   2023.11.26 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Chicago   Country:United States  

  6. Estimation of CTDIvol ratio between low and high tube voltage in dual-energy CT International conference

    K. Hirayama, T. Kobayashi, S. Mochinaga, K. Nomura, K. Fujii, Y. Muramatsu

    European congress of radiology (ECR) 2023  2023.3 

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    Event date: 2023.3

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Vienna   Country:Austria  

  7. Patient-specific analysis of dose metrics and organ doses based on Monte Carlo simulation in multiphase abdominal CT examinations International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Hiroyuki Ota, Masafumi Shinozaki, So Tsushima

    Annual Meeting of Radiological Society of North America (RSNA) 2022  2022.12.1 

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    Event date: 2022.11 - 2022.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  8. Physics Performance Evaluation of Prototype Photon Counting CT: Large-phantom Evaluation

    第78回日本放射線技術学会総会学術大会  2022.4.17 

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    Event date: 2022.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  9. Evaluation of apparent noise and low contrast detectability on abdominal phantom CT images reconstructed with a new deep learning algorithm. International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Hiroyuki Ota, Masafumi Shinozaki, Saeko Sekiguchi, So Tsushima, Naruomi Akino, Shinsuke Tsukagoshi

    Annual Meeting of Radiological Society of North America (RSNA) 2021  2021.11 

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    Event date: 2021.11 - 2021.12

    Language:English   Presentation type:Poster presentation  

    Venue:Online   Country:United States  

  10. Quantitative image quality comparison between photon counting and conventional CT systems: noise, resolution and quantitative accuracy. International coauthorship International conference

    K Nomura, K Fujii, Y Muramatsu, H Kuno, T Kobayashi, X Zhan, R Zhang, I Hein, Z Yu, R Thompson, A Nishijima, S Tsukagoshi, S Tsushima, N Akino

    Annual Meeting of Radiological Society of North America (RSNA) 2021  2021.11 

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    Event date: 2021.11 - 2021.12

    Language:English   Presentation type:Poster presentation  

    Venue:Online   Country:United States  

  11. Comparison of the regression fits between organ doses determined by Monte Carlo simulation and dose metrics in adult chest-abdomen-pelvis CT examinations across CT scanners. International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Hiroyuki Ota, Masafumi Shinozaki

    Annual Meeting of Radiological Society of North America (RSNA) 2021  2021.11 

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    Event date: 2021.11 - 2021.12

    Language:English   Presentation type:Poster presentation  

    Venue:Online   Country:United States  

  12. CT検診における位置決め撮影線量の低減に関する検討

    野村恵一, 藤井啓輔, 太田博之, 篠崎雅史, 持永紗枝子, 村松禎久

    第28回日本CT検診学会学術集会  2021.2.21 

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    Event date: 2021.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:Online   Country:Japan  

  13. Analysis of correlation between organ doses and dose metrics in adult and pediatric chest-abdomen-pelvis CT examinations International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Hiroyuki Ota, So Tsushima, Shinsuke Tsukagoshi

    Annual Meeting of Radiological Society of North America (RSNA) 2020  2020.11.29 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Poster presentation  

    Venue:Online   Country:United States  

  14. Body weight estimation based on CT imaging and Practicality for CT dose evaluation in the Trunk. International coauthorship International conference

    S. Mochinaga, Y. Iwabuchi, K. Mizuguchi, K. Nomura, H. Ota, K. Fujii, S. Tsukagoshi, MF. McNitt-Gray Y. Muramatsu

    Annual Meeting of Radiological Society of North America (RSNA) 2020  2020.11.29 

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    Event date: 2020.11 - 2020.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Online   Country:United States  

  15. Analysis of CT dose - Estimation of CT dose indices based on Scan projection radiographs - International conference

    S. Mochinaga, Y. Iwabuchi, K. Nomura, H. Ota, K. Fujii, T. Goto, Y. Muramatsu.

    European Congress of Radiology (ECR) 2020  2020.7.15 

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    Event date: 2020.7

    Language:English   Presentation type:Poster presentation  

    Venue:Vienna   Country:Austria  

  16. A Data-Driven Approach to Setting Radiation Dose Notification Values for CT That Can Be Used in Dose Management Software Applications. International coauthorship International conference

    Y. Iwabuchi, Y. Muramatsu, H. Ota, K. Nomura, K. Fujii, Y. Osawa, M. McNitt-Gray.

    Annual Meeting of Radiological Society of North America (RSNA) 2019  2019.12.4 

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    Event date: 2019.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  17. Organ Dose Evaluations for Individual Patients in Chest-Abdomen-Pelvis CT Examinations Using Deep Learning-Based Automatic Segmentation International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Hiroyuki Ota, Takahiro Goto, So Tsushima, Shinsuke Tsukagoshi

    Annual Meeting of Radiological Society of North America (RSNA) 2019  2019.12.4 

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    Event date: 2019.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  18. Size-Specific Analysis of Patient Doses From CT Localizer Radiographs International conference

    K. Nomura, K. Fujii, T. Goto, Y. Iwabuchi, H. Ota, T. Kobayashi, Y. Muramatsu

    Annual Meeting of Radiological Society of North America (RSNA) 2019  2019.12.5 

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    Event date: 2019.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  19. 移動平均フィルタを用いた低コントラストCT画像の画質評価

    藤井啓輔, 今井國治, 池田 充, 川浦稚代, 野村恵一, 村松禎久, 太田博之

    電子情報通信学会2018年度 第5回イメージメディアクォリティ研究会  2019.3.15 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:鹿児島   Country:Japan  

  20. Patient-specific analysis of organ doses in chest-abdomen-pelvis CT examinations with tube current modulation International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Takahiro Goto, Satoshi Obara, Keiichi Akahane, Hiroyuki Ota, Shinsuke Tsukagoshi

    Annual Meeting of Radiological Society of North America (RSNA) 2018  2018.11.29 

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    Event date: 2018.11

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  21. 異なる管電圧における線量シミュレーションの精度検証

    野村恵一,藤井啓輔,太田博之,村松禎久

    日本CT技術学会第6回学術大会  2018.6.30 

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    Event date: 2018.6

    Language:Japanese   Presentation type:Poster presentation  

    Venue:名古屋   Country:Japan  

  22. シミュレーション計算に基づいた管電流変調機能使用時の小児CT検査における臓器線量の評価

    藤井啓輔, 野村恵一, 村松禎久, 後藤崇博, 小原哲, 赤羽恵一, 楠本昌彦

    第73回日本放射線技術学会総会学術大会 

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    Event date: 2017.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  23. Can Size-Specific Dose Estimates (SSDE) be regarded as the preferred dose index for the detectability in lung cancer CT screening? International coauthorship International conference

    Y. Muramatsu, K. Nomura, K. Fujii, M. McNitt-Gray, M. Kusumoto.

    Annual Meeting of Radiological Society of North America (RSNA) 2016  2016.11.27 

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    Event date: 2016.11 - 2016.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  24. Organ dose evaluations based on Monte Carlo simulation and in-phantom dosimetry for interventional radiology International conference

    Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Miki Yoshimura, Naotaka Sato, Masahiko Kusumoto

    Annual Meeting of Radiological Society of North America (RSNA) 2016  2016.11.29 

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    Event date: 2016.11 - 2016.12

    Language:English   Presentation type:Poster presentation  

    Venue:Chicago   Country:United States  

  25. 逐次近似画像におけるノイズ付加効果

    五十嵐健悟, 山元勇輝, 内藤啓介, 川浦稚代, 藤井啓輔, 池田 充, 今井國治

    第43回日本放射線技術学会秋季学術大会 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:金沢   Country:Japan  

  26. 臓器線量評価に基づいた乳幼児CT検査における非対称可変コリメータの被ばく低減効果に関する検討

    川浦稚代, 山内雅人, 小原 哲, 藤井啓輔, 赤羽恵一, 今井國治, 池田 充

    第43回日本放射線技術学会秋季学術大会 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:金沢   Country:Japan  

  27. Benchmarking Head CT Doses: A Pooled Vs. Protocol Specific Analysis of Radiation Doses in Adult Head CT Examinations International conference

    FUJII Keisuke, BOSTANI Maryam, CAGNON Chris, MCNITT-GRAY Michael

    American Association of Physicists in Medicine 57th Annual Meeting 

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    Event date: 2015.7

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  28. Patient-Size Specific Analysis of CT Doses From Lung Cancer Screening International conference

    FUJII Keisuke, MCMILLAN Kyle, BOSTANI Maryam, CAGNON Chris, MCNITT-GRAY Michael

    American Association of Physicists in Medicine 57th Annual Meeting 

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    Event date: 2015.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  29. Differences Observed in Radiation Doses Across 2 Similar CT Scanners From Adult Brain-Neck CT Angiography International conference

    FUJII Keisuke, MCMILLAN Kyle, BOSTANI Maryam, CAGNON Chris, MCNITT-GRAY Michael

    American Association of Physicists in Medicine 57th Annual Meeting 

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    Event date: 2015.7

    Language:English   Presentation type:Poster presentation  

    Country:United States  

  30. 脳溝狭小型ファントムを用いた脳梗塞CT検査における画質改善と被ばく低減に関する研究

    川浦稚代, 山元勇輝, 五十嵐健悟, 内藤啓介, 山内雅人, 藤井啓輔, 池田 充, 今井國治

    日本保健物理学会第48回研究発表会 

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    Event date: 2015.7

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  31. 0.25mm*128列の超高精細CTを用いた胸部CT撮影の被ばく線量の検討

    野村恵一, 藤井啓輔, 長澤宏文, 村松禎久, 塚越伸介, 柿沼龍太郎, 森山紀之

    第71回日本放射線技術学会総会学術大会 

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    Event date: 2015.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  32. 確率共鳴現象を利用したCT画像における鮮鋭度の改善

    山元勇輝, 内藤啓介, 遠地志太, 藤井啓輔, 川浦稚代, 森 政樹, 池田 充, 今井國治

    電子情報通信学会2014年度第4回イメージ・メディア・クオリティ研究会 

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    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  33. 脳血管のフラクタル性を用いたヨード製剤の動態解析

    内藤啓介, 山元勇輝, 藤井啓輔, 川浦稚代, 西本卓也, 森 政樹, 池田 充, 今井國治

    電子情報通信学会2014年度第4回イメージ・メディア・クオリティ研究会 

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    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  34. X線CT画像における雑音の正規性に関する検討

    大橋侑真, 池田 充, 木村健人, 塚本一輝, 今井國治, 川浦稚代, 藤井啓輔

    電子情報通信学会2014年度第4回イメージ・メディア・クオリティ研究会 

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    Event date: 2014.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  35. 日本人型3歳児ファントム臓器線量計測システムを用いたCT検査における被ばく線量評価

    川浦稚代, 藤井啓輔, 山内雅人, 小原哲, 赤羽恵一, 池田充, 今井國治

    第42回日本放射線技術学会秋季学術大会 

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    Event date: 2014.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌   Country:Japan  

  36. 確率共鳴による CT 画像のコントラスト増幅

    山元勇輝,内藤啓介,遠地志太,藤井啓輔,川浦稚代,森政樹,池田充,今井國治

    第42回日本放射線技術学会秋季学術大会 

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    Event date: 2014.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:札幌   Country:Japan  

  37. 造影能に関する理論式の導出とそれに基づく造影能評価

    内藤啓介, 山元勇輝, 藤井啓輔, 川浦稚代, 西本卓矢, 森政樹, 池田充, 今井國治

    第42回日本放射線技術学会秋季学術大会 

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    Event date: 2014.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:札幌   Country:Japan  

  38. CT画像における確率共鳴の発現とその応用

    山元勇輝,内藤啓介,遠地志太,藤井啓輔,川浦稚代,森政樹,池田充,今井國治

    第13回情報科学技術フォーラム 

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    Event date: 2014.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:筑波   Country:Japan  

  39. CT検査における受診者の被ばく線量と放射線リスク

    藤井啓輔

    第1回JSCTシンポジウム 

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    Event date: 2014.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  40. X線CTにおける各画素における吸収線量と雑音SDに関する検討

    塚本一輝、池田充、大橋侑真、木村健人、村上誠介、今井國治、川浦稚代、藤井啓輔

    第33回日本医用画像工学会大会 

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    Event date: 2014.7

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  41. X線CT画像のシミュレーション時のサンプリング誤差の軽減に関する検討

    木村健人, 池田充, 大橋侑真, 塚本一輝, 今井國治, 川浦稚代, 藤井啓輔

    第33回日本医用画像工学会大会 

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    Event date: 2014.7

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  42. X線CT画像における雑音の統計的性質に関する検討

    大橋侑真、池田充、木村健人、塚本一輝、曽貝圭佑、今井國治、川浦稚代、藤井啓輔

    第33回日本医用画像工学会大会 

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    Event date: 2014.7

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  43. 非イオン系ヨード製材の造影能評価 -X線薬剤物性に基づく理論式の導出-

    今井國治, 内藤啓介, 藤井啓輔, 川浦稚代, 池田 充, 西本卓也, 森 政樹

    医療薬学フォーラム2014/第22回クリニカルファーマシーシンポジウム 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  44. 小児CT検査における被ばく評価を目的とした日本人型3歳児人体ファントムの開発

    川浦稚代, 藤井啓輔, 山内雅人, 赤羽恵一, 奈良井和宏, 池田充, 今井國治

    日本保健物理学会第47回研究発表会 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:岡山   Country:Japan  

  45. 知っておきたいCT被ばくの最新情報 -受診者の被ばく-

    藤井 啓輔

    Advanced CT・MR 2014 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  46. Evaluation of organ doses in adult and pediatric CT examinations based on Monte Carlo simulations and in-phantom dosimetry using anthropomorphic phantoms International conference

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

    International Conference on Radiation Protection in Medicine 

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    Event date: 2014.5 - 2014.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:Bulgaria  

  47. 肺がんCT検診における逐次近似応用再構成画像の画質評価に基づいた至適条件の検討

    藤井 啓輔、高瀬 郁子、今井 國治、野村 恵一、高橋 圭祐、村松 禎久

    第21回日本CT検診学会学術集会 

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    Event date: 2014.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉   Country:Japan  

  48. ヨード系造影剤の組成構造が及ぼす造影効果の違い

    西本 卓也、森 政樹、旗 道子、植村 武司、酒井 崇、近藤 悟、米田 和夫、今井 國治、藤井 啓輔、宮地 茂

    第29回日本脳神経血管内治療学会学術総会 

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    Event date: 2013.11

    Language:Japanese   Presentation type:Poster presentation  

    Venue:新潟   Country:Japan  

  49. 等浸透圧造影剤の造影効果-造影能に及ぼす薬剤分子構造の影響-

    内藤啓介, 西本宅矢, 藤井啓輔, 高瀬郁子, 川浦稚代, 森政樹, 池田充, 今井 國治

    日本生体医工学会東海支部大会 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  50. 脳血管CT Angiographyにおける血管輪郭の検出能評価

    滝本佳奈, 高瀬郁子, 遠地志太, 藤井啓輔, 川浦稚代, 森政樹, 池田充, 今井 國治

    日本生体医工学会東海支部大会 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  51. 確率共鳴を利用したコントラスト分解能の改善

    山元勇輝, 藤井啓輔, 高瀬郁子, 遠地志太, 川浦稚代, 森政樹, 池田充, 今井國治

    電子情報通信学会技術研究報告 イメージメディアクオリティ 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:千葉   Country:Japan  

  52. 我が国の小児CTで患児がうける線量の実態調査

    竹井 泰孝、鈴木 昇一、松原 孝祐、村松 禎久、島田 義也、藤井 啓輔、赤羽 恵一、宮崎 治

    第41回日本放射線技術学会秋季学術大会 

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    Event date: 2013.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:アクロス福岡   Country:Japan  

  53. 低線量肺がんCT検診における撮影および画像再構成条件の検討

    淺井博之, 藤井啓輔, 野村恵一, 渋谷俊之, 髙橋圭祐, 花井耕造

    第20回日本CT検診学会学術集会 

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    Event date: 2013.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  54. 低線量肺がんCT検診における患者被ばく線量の評価 -人体ファントムを用いた実測による評価と計算シミュレーションによる評価-

    藤井啓輔, 野村恵一, 淺井博之, 渋谷俊之, 高橋圭祐, 花井耕造

    第20回日本CT検診学会学術集会 

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    Event date: 2013.2

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:東京   Country:Japan  

  55. 各種CT装置におけるシミュレーション線量計算ソフトウェアの有効性に関する検討

    藤井啓輔, 野村恵一, 村松禎久, 新井知大, 荒井美紀, 長澤宏文, 高橋圭祐, 花井耕造

    第40回日本放射線技術学会秋期学術大会 

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    Event date: 2012.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  56. 頭部CT検査における年齢別被ばく線量評価を目的とした3歳児頭部ファントム臓器線量計測システムの開発

    川浦稚代, 藤井啓輔, 赤羽恵一, 山内雅人, 奈良井和宏, 勝 利彦

    第40回日本放射線技術学会秋期学術大会 

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    Event date: 2012.10

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  57. CT線量分布シミュレーションの精度向上に向けたbow-tie filterの推定

    新井知大, 荒井美紀, 野村恵一, 藤井啓輔, 長澤宏文, 村松禎久, 佐々木徹

    第40回日本放射線技術学会秋期学術大会 

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    Event date: 2012.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  58. シミュレーション線量計算ソフトウェアを用いたCT-AECにおける被写体の線量分布の検討

    野村恵一, 藤井啓輔, 村松禎久, 新井知大, 荒井美紀, 長澤宏文, 高橋圭祐, 花井耕造

    第40回日本放射線技術学会秋期学術大会 

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    Event date: 2012.10

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  59. X線CT検査における年齢別被ばく線量評価を目的とした日本人型小児ファントムの作成

    川浦稚代, 藤井啓輔, 赤羽恵一, 山内雅人, 奈良井和宏, 青山隆彦、勝 利彦

    日本保健物理学会第45回研究発表会 

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    Event date: 2012.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  60. 多列検出器CT装置の進歩によるCT被ばく線量の変化 International conference

    青山隆彦, 小山修司, 川浦稚代, 藤井啓輔

    日本保健物理学会第45回研究発表会 

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    Event date: 2012.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:名古屋   Country:Japan  

  61. 小児CT検査における年齢別被ばく線量評価を目的とした人体ファントムの作成

    川浦稚代, 藤井啓輔, 山内雅人, 赤羽恵一, 奈良井和宏, 青山隆彦, 勝 利彦

    第103回日本医学物理学会学術大会 

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    Event date: 2012.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  62. 乳幼児CT検査における被ばく線量の評価

    藤井啓輔, 赤羽恵一, 福田利恵子, 宮嵜 治, 堀内哲也, 嶋田彩乃, 永松洋志, 川崎稔生

    第100回日本医学物理学会学術大会 

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    Event date: 2010.9

    Language:Japanese   Presentation type:Poster presentation  

    Venue:東京   Country:Japan  

  63. Evaluation of organ doses in CT examinations with an infant anthropomorphic phantom International conference

    FUJII Keisuke, AKAHANE Keiichi, MIYAZAKI Osamu, HORIUCHI Tetsuya, SHIMADA Ayano, KAWASAKI Toshio

    International Conference on Radiation Protection in Medicine 

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    Event date: 2010.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Bulgaria  

  64. Dose measurement for medical staff with glass dosemeters and thermoluminescence dosemeters during 125I brachytherapy for prostate cancer. International conference

    FUJII Keisuke, SUSUMU Ko, NAKO Yasunobu, TONARI Ayako, NISHIZAWA Kanae, AKAHANE Keiichi, TAKAYAMA Makoto

    European Conference on Individual Monitoring of Ionizing Radiation 

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    Event date: 2010.3

    Language:English   Presentation type:Oral presentation (general)  

    Country:Greece  

  65. 肺がんCT検診における被ばく線量評価

    藤井啓輔, 青山隆彦, 川浦稚代, 小山修司, 幸 進, 西澤かな枝, 赤羽恵一, 岩井一男

    日本保健物理学会第43回研究発表会 

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    Event date: 2009.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪   Country:Japan  

  66. X線CT検査時の個人および集団の被ばく線量推定方法と解釈に関する検討

    赤羽恵一, 藤井啓輔, 幸 進, 岩井一男, 齋藤公明, 西澤かな枝

    日本保健物理学会第43回研究発表会 

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    Event date: 2009.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:大阪   Country:Japan  

  67. 直接型ダイナミックFPD装置を用いた透視検査時の被ばく線量評価

    幸 進, 土橋 卓, 藤井啓輔, 熊谷始紀, 森 慎一郎, 蓑原伸一, 西澤かな枝

    第97回日本医学物理学会学術大会 

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    Event date: 2009.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  68. CT 検査時のビーム幅およびピッチの違いが被ばく線量に及ぼす影響 International conference

    藤井啓輔, 青山隆彦, 川浦稚代, 小山修司

    第97回日本医学物理学会学術大会 

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    Event date: 2009.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  69. 低線量肺がんCT検診における被ばく線量評価

    藤井啓輔, 幸 進, 西澤かな枝, 赤羽恵一, 松本 徹, 和田真一, 岩井一男

    第16回日本CT検診学会学術集会 

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    Event date: 2009.2

    Language:English   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

  70. Evaluation of average glandular doses in digital mammography. International conference

    FUJII Keisuke, SUSUMU Ko, NISHIZAWA Kanae, AKAHANE Keiichi, IWAI Kazuo, MATSUMOTO Masao

    The 5th KOREA-JAPAN Joint Meeting on Medical Physics 

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    Event date: 2008.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  71. 64 列X 線CT 装置を用いた成人、小児CT 検査における患者被ばく線量評価 -4,16 列CT 装置との比較-

    藤井啓輔, 青山隆彦, 川浦稚代, 小山修司

    日本保健物理学会第42回研究発表会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  72. 医療被ばくの線量及びリスク評価における諸線量指標の有用性に関する検討

    赤羽恵一, 幸 進, 藤井啓輔, 岩井一男, 齋藤公明, 西澤かな枝

    日本保健物理学会第42回研究発表会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  73. 急性期脳卒中診断時CT検査における患者被ばく線量の評価

    川浦稚代, 藤井啓輔, 青山隆彦, 小山修司

    日本保健物理学会第42回研究発表会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  74. 経皮的カテーテル電気焼灼術における被ばく線量評価

    瀬口繁信, 藤井啓輔, 青山隆彦, 小山修司, 川浦稚代

    日本保健物理学会第42回研究発表会 

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    Event date: 2008.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:沖縄   Country:Japan  

  75. 64列X線CT装置を用いた成人及び小児CT検査における被ばく線量評価

    藤井啓輔, 青山隆彦, 川浦稚代, 小山修司

    第95回日本医学物理学会学術大会 

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    Event date: 2008.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:横浜   Country:Japan  

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KAKENHI (Grants-in-Aid for Scientific Research) 6

  1. Evaluation of CT scan protocols appropriate for patient size based on the evaluation of radiation doses and image quality

    Grant number:18K07709  2018.4 - 2021.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Fujii Keisuke

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    Authorship:Principal investigator 

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

    The aim of this study is to evaluate CT scan protocol appropriate for patient size based on the evaluation of radiation doses and image quality. We performed Monte Carlo simulation using the simulation models created from CT images of each patient, and evaluated how much organ doses in adult and pediatric chest-abdomen-pelvis CT examinations differ depending on patient size. In addition, we developed image qualuty evaluation phantoms representing adult and child abdominal shapes, and evaluated image noise reflecting visual impression (apparent noise) on the phantom CT images obtained with different radiation doses and non-linear reconstruction algorithms. Furthermore, we examined radiation doses appropriate for each patient size based on the apparent noise evaluation.

  2. 成人および小児体幹部CT検査における各患者体型に適した撮影条件の検討

    2015.4

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  3. Evaluation of scan protocols appropriate for patient-size in adult and pediatric CT examinations

    Grant number:15K19202  2015.4 - 2018.3

    Fujii Keisuke

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    Authorship:Principal investigator 

    Grant amount:\4290000 ( Direct Cost: \3300000 、 Indirect Cost:\990000 )

    The aim of this study is to investigate scan protocols appropriate for CT examinations based on the evaluation of radiation doses and image quality. We built Monte Carlo (MC) simulation models for adult and pediatric abdomen-pelvis CT scans with tube current modulation (TCM) and evaluated organ doses in the CT examinations using the simulation models. The doses were compared with those measured using adult and pediatric anthropomorphic phantoms and radio-photoluminescence glass dosimeters. We also developed an image quality phantom representing an adult abdominal shape. The image quality phantom was scanned with fixed tube current and TCM protocols which deliver almost the same CT dose index, and the radiation doses and image quality were evaluated. The results showed that dose distribution in CT scans with TCM was more uniform, and image noise on CT images obtained with TCM decreased in some regions.

  4. 確率共鳴を利用した脳梗塞部の検出と被ばく線量軽減-ノイズは本当に有害因子なのか?

    2014.4

    科学研究費補助金  基盤研究(C)

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    Authorship:Coinvestigator(s) 

  5. 乳幼児CT検査における年齢別被ばく評価と検査の最適化に関する研究

    2013.4

    科学研究費補助金  基盤研究(C)

    川浦稚代

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    Authorship:Coinvestigator(s) 

  6. X線CT検査による乳幼児患者の年齢別被ばく評価と防護の最適化に関する研究

    2010.4 - 2013.3

    科学研究費補助金  基盤研究(C)

    川浦稚代

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    Authorship:Coinvestigator(s) 

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Teaching Experience (On-campus) 1

  1. Graduation Research

    2023