Presentations -
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Thyroid dose reduction related to the overranging effect by using a novel sponge-type shield during high-pitch chest CT examination
Kazuki Takegami, Hiroaki Hayashi, Tatsuya Maeda, Cheonghae Lee, Rina Nishigami, Takashi Asahara, Shuichi Murakami, Takeshi Konishi, Motochika Maki
2nd International Conference on Radiological Physics and Technology (ICRPT) 2023.4
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Suitability of High-Tube-Voltage Imaging When Using Energy Resolving Photon Counting Detector (ERPCD): Simulation Study
Rina Nishigami, Hiroaki Hayashi, Cheonghae Lee, Daiki Kobayashi, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Tomonobu Haba, Natsumi Kimoto, Shuichiro Yamamoto
2nd International Conference on Radiological Physics and Technology (ICRPT) 2023.4
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A correction method for object edge blurring that is effective for quantitative analysis using photon counting imaging
Daiki Kobayashi, Hiroaki Hayashi, Cheonghae Lee, Rina Nishigami, Tatsuya Maeda, Takashi Asahara, Yuki Kanazawa, Akitoshi Katsumata, Natsumi Kimoto, Shuichiro Yamamoto
2nd International Conference on Radiological Physics and Technology (ICRPT) 2023.4
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A novel function for wearable dosimeters: to determine both incident direction and absolute dose of X-rays during IVR procedure
Takashi Asahara, Hiroaki Hayashi, Tatsuya Maeda, Daiki Kobayashi, Sota Goto, Cheonghae Lee, Yuki Kanazawa, Naoki Maeda, Satoshi Imajo, Mitsugi Honda
2nd International Conference on Radiological Physics and Technology (ICRPT) 2023.4
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A wearable active-type dosimeter having novel functions to derive both incident direction and absolute dose of scattered X-rays during IVR procedures
Takashi Asahara, Hiroaki Hayashi, Tatsuya Maeda, Sota Goto, Daiki Kobayashi, Cheonghae Lee, Yuki Kanazawa, Naoki Maeda, Mitsugi Honda
European Congress of Radiology (ECR) 2023.3
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Practical procedure to reduce thyroid dose related to the overranging effect during fast chest CT examination using a novel sponge shield with embedded fine bismuth particles
Kazuki Takegami, Hiroaki Hayashi, Tatsuya Maeda, Cheonghae Lee, Rina Nishigami, Takashi Asahara, Shuichi Murakami, Takeshi Konishi, Motochika Maki
European Congress of Radiology (ECR) 2023.3
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ディスポ型自作直腸線量計を用いた子宮頸がん治療における線量の実測
林 裕晃, 前田達哉, 淺原 孝, 後藤聡汰, 竹上和希, 李 青海, 安藤未来, 金澤裕樹, 生島仁史, 岡崎 徹, 橋詰拓弥
第3回日本放射線安全管理学会・日本保健物理学会合同大会 2021.12
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What Information Can We Derive From In-vivo Rectum Dose Measurement During RALS Irradiation?
Hiroaki HAYASHI, Natsumi KIMOTO, Tatsuya MAEDA, Takashi ASAHARA, Sota GOTO, Cheonghae Lee, Miku ANDO, Yuki KANAZAWA, Hitoshi IKUSHIMA, Tohru OKAZAKI, Takuya HASHIZUME
RSNA2021 2021.11
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Trial to Fabricate a Radiation Dosimeter Having Functions to Determine Both Incident Angle and Exposure Dose of Scattered X-rays
Takashi Asahara, Hiroaki Hayashi, Tatsuya Maeda, Satoshi Imajo, Miho Numata, Mitsugi Honda
3rd Technological Competency As Caring In The Health Sciences 2021.8
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How can we perform actual dose measurement? Clinically applicable procedures and its impact
Takashi Asahara, Hiroaki Hayashi, Natsumi Kimoto, Sota Goto, Kazuki Takegami, Tatsuya Maeda, Cheonghae Lee, Yuki Kanazawa, Kazuta Yamashita, Kosaku Higashino
RSNA2020 2020.12
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A Novel Algorithm for Material Identification Based on a Photon Counting Technique -Toward the Development of a Quantitative Plain X-ray Diagnosis Using an Effective Atomic Number Image-
Natsumi Kimoto, Hiroaki Hayashi, Takumi Asakawa, Takashi Asahara, Akitoshi Katsumata, Shuichiro Yamamoto, Masahiro Okada
第76回日本放射線技術学会総会学術大会 2020.4
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Phantom study using novel shaped OSL dosimeters having smaller angular dependence toward actual dose measurement during clinical X-ray examination
Sota Goto, Hiroaki Hayashi, Emi Tomita, Takashi Asahara, Kaho Ikushima, Momoka kuwabara, Yuki Kanazawa
第76回日本放射線技術学会総会学術大会 2020.4
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Dual-type active dosimeter having a novel algorithm to identify incident angles of X-rays
Takashi Asahara, Hiroaki Hayashi, Tatsuya Maeda, Yuki Kanazawa, Satoshi Imajo, Miho Numata, Mitsugi Honda
第76回日本放射線技術学会総会学術大会 2020.4
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Dose calibration factor of an OSL dosimeter during CT examination to measure exposure dose of patients taking into consideration proper X-ray quality
Kazuki Takegami, Hiroaki Hayashi, Takashi Asahara, Sota Goto, Emi Tomita, Natsumi Kimoto, Yuki Kanazawa, Shohei Kudomi
ECR2020 2020.3
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Photon counting technique: How to analyze a novel quantitative image?
Natsumi Kimoto, Hiroaki Hayashi, Takumi Asakawa, Takashi Asahara, Tatsuya Maeda, Akitoshi Katsumata, Yuki Kanazawa, Shuji Koyama, Shuichiro Yamamoto, Masahiro Okada
RSNA2019 2019.12
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Feasibility study of photon counting detector for producing effective atomic number image
Natsumi Kimoto, Hiroaki Hayashi, Takumi Asakawa, Takashi Asahara, Tatsuya Maeda, Yuki Kanazawa, Akitoshi Katsumata, Shuichiro Yamamoto, Masahiro Okada
IEEE Nuclear Science Symposium and Medical Imaging Conference 2019.10
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Importance of considering the response function of photon counting detectors with the goal of precise material identification
Takumi Asakawa, Hiroaki Hayashi, Natsumi Kimoto, Takashi Asahara, Tatsuya Maeda, Shuji Koyama, Shuichiro Yamamoto, Masahiro Okada
IEEE Nuclear Science Symposium and Medical Imaging Conference 2019.10
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Practical calibration curve for a small-type OSL dosimeter to measure exposure dose of patients during medical X-ray diagnosis
Kazuki Takegami, Hiroaki Hayashi, Natsumi Kimoto, Sota Goto, Emi Tomita, Asahara Takashi, Yoshiki Mihara, Yuki Kanazawa
19th International Conference on Solid State Dosimetry (SSD19) 2019.9
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Novel Disk-Shaped OSL Dosimeter Having Smaller Angular Dependence
Sota GOTO, Hiroaki HAYASHI, Emi TOMITA, Takashi ASAHARA, Natsumi KIMOTO, Yuki KANAZAWA, Hidetoshi YAMAGUCHI, Morihito SHIMIZU
19th International Conference on Solid State Dosimetry (SSD19) 2019.9
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Precise dose calibration method of OSL dosimeter with help of X-ray spectra toward exposure dose evaluation of eye lens
Takashi Asahara, Hiroaki Hayashi, Sota Goto, Emi Tomita, Natsumi Kimoto, Takumi Asakawa, Kazuki Takegami, Yuki Kanazawa, Tohru Okazaki, Takuya Hashizume
19th International Conference on Solid State Dosimetry (SSD19) 2019.9