九州大学 研究者情報
著書一覧
井手口 忠光(いでぐちただみつ) データ更新日:2024.06.03

准教授 /  医学研究院 保健学部門


著書
1. 杜下淳次(編),桂川茂彦, 藤田広志,井手口忠光,田中延和, 白石順二,近藤世範,田中利恵,寺本篤司,小笠原克彦,谷川琢海, 医用画像情報学 改訂5版, 南山堂, P100-P108
, 2023.10.
2. 杜下淳次、中村泰彦、藤潤俊王、上田克彦、坂本 聲、時枝美貴、朝原正喜、田中延和、吉田 豐、王丸愛子、椎葉拓郎、井手口忠光、 德禮将吾、幾嶋洋一郎、肥合康弘、川村順二、對間博之、橋田昌弘, 診療放射線技師臨床実習テキスト, 文光堂, P120-P124, 2020.06.
3. 山口成厚、西村明久、森川惠子、菅山幸信、 阪間稳、天野良平、 音藤正好、小倉泉、吉永哲哉、中山和也 、吉田貴博、 藤本憲市、 岩元新一郎、 坂本重己、 小野木満照、青山良介、 會田保、小山修司、熊谷孝三、水野秀之、林直樹、野康昌、徳森謙二、工藤幸清、 對馬惠、具 然和、 小田紋弘、原辰徳 、井手口忠光、市原隆洋、 篠原範充、下瀬川正幸、 小川互、 田中延和、 赤澤博之、森正人、田畑慶、吉野進也、前川昌之、松本圭一 、 向井孝夫、 村瀬研也、細羽実、 星野修平、金珍澤、安田成臣, 新・医用放射線技術実験―基礎編― 第4版, 共立出版, P280-P286, 2020.12.
4. 大久保敏之、加藤博基、加耒佐和子、楠本昌彦、天沼誠、横山健一、齋田幸久 、佐藤友美、 高瀬 主、 川島博子、 福岡 努、神島 保、小倉明夫、森 墾、増本智彦、山口 功、岩澤多惠、 林則夫、井手口忠光、 原留弘樹、西田裕子、 石田有治, 人体のメカニズムから学ぶ 画像診断技術学, メジカルビュー社, P296-P309, 2020.04.
5. 杜下淳次, 藤淵俊王, 小林幸次, 吉川英樹, ユンヨンス, 田中延和, 服部昭子, 吉田豊, 倉本卓, 辰見正人, 溝口範子, 井手口忠光,小川和久, 齋藤高志, 近藤雅敏, 河窪正照 , 小宮勲, 加藤豊幸 , 医用画像検査技術学 改訂4版, 南山堂, P146-P205
P213-P260, 2020.11.
6. 有村秀孝、片渕哲朗、寺本篤司、 石垣陸太、川下郁生、 原武史、石田隆行、 川嶋広貴、 福岡大輔、市川勝弘、熊澤誠志、藤田広志、井手口忠光、小寺吉篇、細羽 実、上杉正人、篠原範充、 松尾悟、内山良一、下瀬川正幸、 松原友子、小笠原克彦、砂口尚輝、 村松千左子、小川瓦、 田中利恵、森健策、小倉敏裕、谷祐児、山崎達也、小田立弘、田畑慶人、李ヨンポム, 新・医用放射線科学講座 医用画像情報工学, 医歯薬出版, P54-P63, 2018.02.
7. Souichiro Kawaguchi, Yoshiki Yamaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Yoshiharu Higashida, Fukai Toyofuku, Reconstruction of mammography x-ray spectrum by using Rayleigh and Compton scattering corrections, 10.1007/978-3-642-03879-2-65, 231-233, 2009.12, [URL], The analysis of the x-ray spectrum is important for quality assurance (QA) and quality control (QC) of a radiographic system such as mammography. In the case of mammography, the direct measurement of the primary x-ray spectra under clinical conditions is very difficult and time-consuming mainly because it is almost impossible to increase the longitudinal distance between the focal spot and x-ray detector in order to make the photon counting measurement possible. An alternative way of measuring the primary spectra is to correct the 90 degree scattered x-ray spectra which can be measured without photon pile-up since the intensity of the scattered x-rays is significantly lowered. The scattered x-ray spectrum is composed of two components, Compton scattered photons and Rayleigh scattered photons. We have developed a new method of reconstructing the primary x-ray spectrum from the scattered x-ray spectrum taking into account both Rayleigh and Compton scattered photons . The 90 degree scattered x-ray spectrum from a 28 kV mammography x-ray unit was measured at a tube voltage by using a CdTe semiconductor detector. The reconstructed spectrum agreed fairly well with a directly measured primary x-ray spectrum. The Rayleigh and Compton scattering correction method could be suitable for measuring the mammography x-ray spectra under clinical conditions and useful for QA and QC of the mammography x-ray units..
8. Yoshiki Yamaguchi, Souichiro Kawaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Kenji Tokumori, Yoshiharu Higashida, Fukai Toyofuku, Rayleigh and Compton scattering analysis for PMMA in the mammography energy range, 10.1007/978-3-642-03879-2-66, 234-237, 2009.12, [URL], The method of obtaining the primary x-ray spectrum by the Compton scattering correction has been practically established for relatively high x-ray tube voltages. However, for mammography, the tube voltages are less than 30 to 35 kV and there exists an intense characteristic x-ray peak at 17.5 keV from the molybdenum target. The influence of Rayleigh scattering can not be neglected in this mammography energy range. Accurate data of Rayleigh and Compton cross sections for the scatterer material are required for obtaining the primary x-ray spectrum by correcting the scattered x-ray spectrum of mammography. The purpose of this study is to investigate the Rayleigh and Compton scattering cross sections for PMMA scatterer material in the mammography energy range theoretically and experimentally. Fluorescent x-rays of 15 to 25 keV were generated by exciting four metal targets including molybdenum by synchrotron radiation. The produced fluorescent x-rays were incident on a sphere of PMMA (polymethyl methacrylate), and scattered x-rays at 90, 120, 150, and 165 degrees, respectively, were measured with a CdTe detector. The scattered fluorescent x-ray spectrum was separated into the Rayleigh and Compton scattering peaks by using a curve fitting technique with two Gaussian functions. We compared the measured cross section data to those obtained from theoretical values. In addition, we calculated the scattered fluorescent x-ray spectra using the Monte Carlo simulation and compared them to the measured spectra. As a result, the ratio of the Rayleigh to the total scattering ratio agreed to theoretical value within 10%. The shapes of the scattered spectra calculated by Monte Carlo simulation agreed fairly well with those of measured spectra..

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