講演・口頭発表等 - 藤井 啓輔
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Patient-specific analysis of image quality of virtual monochromatic images and organ doses in abdominal dual energy CT examinations 国際会議
Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Masafumi Shinozaki, Yutaka Chiba, Yuichi Nagai
Annual Meeting of Radiological Society of North America (RSNA) 2024 2024年12月1日
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Sharpness evaluation of chest multi planar reconstruction images with normal and super high resolution mode of CZT-based photon counting detector CT 国際会議
Keiichi Nomura, Keisuke Fujii, Tomoaki Sasaki, Yoshihisa Muramatsu, Hiroki Taguchi, Tatsushi Kobayashi
Annual Meeting of Radiological Society of North America (RSNA) 2024 2024年12月2日
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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年7月12日
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Patient-specific analysis of organ doses and image quality in abdominal single energy and dual energy CT examinations 国際会議
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年11月30日
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Super-high-resolution abdominal imaging using CZT based photon counting CT with deep learning reconstruction: quantitative study and first clinical impression 国際会議
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年11月26日
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High z-axis resolution imaging using CZT-based photon counting CT: quantitative study and first clinical trial 国際会議
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年11月26日
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Super-High-Resolution Chest Imaging using CZT-Based Photon Counting CT: Performance Characterization and First Clinical Trial 国際会議
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年11月26日
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Estimation of CTDIvol ratio between low and high tube voltage in dual-energy CT 国際会議
K. Hirayama, T. Kobayashi, S. Mochinaga, K. Nomura, K. Fujii, Y. Muramatsu
European congress of radiology (ECR) 2023 2023年3月
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Patient-specific analysis of dose metrics and organ doses based on Monte Carlo simulation in multiphase abdominal CT examinations 国際会議
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年12月1日
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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年4月17日
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Evaluation of apparent noise and low contrast detectability on abdominal phantom CT images reconstructed with a new deep learning algorithm. 国際会議
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年11月
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Quantitative image quality comparison between photon counting and conventional CT systems: noise, resolution and quantitative accuracy. 国際共著 国際会議
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年11月
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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. 国際会議
Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Saeko Mochinaga, Hiroyuki Ota, Masafumi Shinozaki
Annual Meeting of Radiological Society of North America (RSNA) 2021 2021年11月
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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年2月21日
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Analysis of correlation between organ doses and dose metrics in adult and pediatric chest-abdomen-pelvis CT examinations 国際会議
Keisuke Fujii, Keiichi Nomura, Yoshihisa Muramatsu, Hiroyuki Ota, So Tsushima, Shinsuke Tsukagoshi
Annual Meeting of Radiological Society of North America (RSNA) 2020 2020年11月29日
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Body weight estimation based on CT imaging and Practicality for CT dose evaluation in the Trunk. 国際共著 国際会議
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年11月29日
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Analysis of CT dose - Estimation of CT dose indices based on Scan projection radiographs - 国際会議
S. Mochinaga, Y. Iwabuchi, K. Nomura, H. Ota, K. Fujii, T. Goto, Y. Muramatsu.
European Congress of Radiology (ECR) 2020 2020年7月15日
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A Data-Driven Approach to Setting Radiation Dose Notification Values for CT That Can Be Used in Dose Management Software Applications. 国際共著 国際会議
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年12月4日
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Organ Dose Evaluations for Individual Patients in Chest-Abdomen-Pelvis CT Examinations Using Deep Learning-Based Automatic Segmentation 国際会議
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年12月4日
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Size-Specific Analysis of Patient Doses From CT Localizer Radiographs 国際会議
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年12月5日