Updated on 2024/10/07

Information

 

写真a

 
IDEGUCHI TADAMITSU
 
Organization
Faculty of Medical Sciences Department of Health Sciences Associate Professor
School of Medicine Department of Health Sciences(Joint Appointment)
Graduate School of Medical Sciences Department of Health Sciences(Joint Appointment)
Title
Associate Professor
Contact information
メールアドレス
Tel
0926426701
External link

Degree

  • Ph.D.

Research History

  • 宮崎大学医学部附属病院 国立病院機構九州グループ(宮崎東病院、熊本医療センター、九州医療センター)

    宮崎大学医学部附属病院 国立病院機構九州グループ(宮崎東病院、熊本医療センター、九州医療センター)

  • 純真学園大学 保健医療学部 放射線技術科学科 教授 純真学園大学 大学院 保健衛生学専攻 教授

Research Interests・Research Keywords

  • Research theme:Evaluation of signal detectability using a 10-bit medical monitor - comparison with a conventional 8-bit monitor.

    Keyword:Medical-monitors, Detectability, Bit depth

    Research period: 2024.5 - 2026.3

  • Research theme:A New Image Evaluation Method for Digital X-ray Image

    Keyword:SSIM MS-SSIM CW-SSIM Wavelet

    Research period: 2022.6 - 2024.3

  • Research theme:Main research, developing method to improve diagnosis ability, still more reduce radiation exposure.

    Keyword:Digital images, physical evaluation, image sciences, Visual evaluation, reduce radiation exposure

    Research period: 2019.9 - 2021.4

Awards

  • 2023年度 九州支部 Research Award

    2023.3   公益社団法人日本放射線技術学会 九州支部   優れた研究に対し、研究費を助成する制度。 テーマ:深層学習を用いたシェッフェの一対比較法による画質評価:田畑 成章,井手口忠光 副賞:10 万円

  • 2023年度 九州支部 Research Award

    2023.3   公益社団法人日本放射線技術学会 九州支部  

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    優れた研究に対し、研究費を助成する制度。
    テーマ:深層学習を用いたシェッフェの一対比較法による画質評価:田畑 成章,井手口忠光
    副賞:10 万円

    researchmap

  • 第65回日本放射線技術学会・学術大会 銅賞受賞

    2009.4   日本放射線技術学会   第65回日本放射線技術学会・学術大会 の発表者の中で、優秀な研究内容として、銅賞を授与された。 研究テーマ「Allura XperFD20装置を用いた肝動脈化学塞栓療法(TACE)における一考察」

  • 第65回日本放射線技術学会・学術大会 銀賞受賞

    2009.4   日本放射線技術学会   第65回日本放射線技術学会の研究発表の中で、優秀な研究内容として、銀賞を授与された。 研究テーマ「対エッジを用いたMTF測定の新しい方法対エッジを用いたMTF測定の新しい方法-」

  • 九州地方会 銀賞受賞

    2005.7   日本核医学技術学会   地方会発表者の中で、優秀な研究内容にて銀賞を授与された。

  • 研究奨励賞・技術奨励賞(画像分野)

    2005.4   日本放射線技術学会   医用画像分野における、デジタル画像の評価において、優れた内容の論文を執筆した者に与えられる。

  • 第59回日本放射線技術学会・学術大会 銀賞受賞

    2003.4   日本放射線技術学会   第59回日本放射線技術学会・学術大会で発表された研究で、優れた研究に与えられる賞。 研究テーマ「CR―Mammography における微小石灰化の検出能の比較検討:―100μ片面集光と50μ両面集光のX線斜入による影響―」

  • 第57回日本放射線技術学会・学術大会 金賞

    2001.4   日本放射線技術学会   第57回日本放射線技術学会・学術大会で発表された内容で、最も優れた研究内容に与えられる。 研究テーマ「CRにおける斜入X線と拡大撮影における画質劣化の検討」

  • 学術奨励賞

    2000.10   厚生省 九州放射線技師会   優れた発表や論文を執筆した功績

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Papers

  • Subjective Contrast of Pulmonary Tissues in CsI-FPD Chest Radiography Using Model Phantom by Monte Carlo Simulation Reviewed

    Vol.79 ( No.2 )   128 - 141   2023.2

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

  • ファントムモデルを用いたモンテカルロシミュレーションによるFPD胸部撮影における肺組織の被写体コントラスト

    小田 敍弘, 上原 周三, 中野 努, 井手口 忠光, 坂本 肇, 田畑 慶人, 赤澤 博之, 青木 隆敏

    日本放射線技術学会雑誌   79 ( 2 )   128 - 141   2023.2   ISSN:0369-4305

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    Language:Japanese   Publisher:(公社)日本放射線技術学会  

  • FPD 胸部撮影におけるX 線線質と肺結節のコントラストノイズ比 —胸部ファントムモデルを用いたモンテカルロシミュレーションによる解析— Reviewed

    小田敍弘、上原周三、中野 努、田畑慶人、水田正芳、井手口忠光、青木隆敏

    日本放射線技術学会   Vol.78 ( No.2 )   1 - 12   2022.2

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

    Objectives: Contrast-to-noise ratio (CNR) of four X-ray beams (90 kV with 0.15-mm Cu filter, 90 kV with
    0.2-mm Cu filter, 120 kV without filter and 120 kV with 0.2-mm Cu filter) in CsI-flat panel detector (FPD) radiography
    for lung cancer diagnosis was investigated using Monte Carlo simulation. Method: Two billion photons
    were injected to the chest phantom model (width: 300 mm, length: 300 mm, thickness: 200 mm) with imitated
    lung nodules (10 mm diameter, CT value: +30 Hounsfield unit (HU), -375 HU, and -620 HU). Individual primary
    and secondary photon’s process (absorption, scattering and penetration) in the phantom and CsI-detector was recorded
    by Monte Carlo simulation. CNR was calculated using primary and secondary absorbed photon’s number
    in the CsI-detector. Results: CNR of 90 kV X-ray beam with 0.15 mm and 0.2 mm Cu filters was higher to 120 kV
    X-ray beam because of higher primary object contrast and photon’s contribution, and high photon’s absorption to
    CsI. Conclusion: By Monte Carlo calculation, it was verified that 90 kV X-ray beam with 0.15 mm and 0.2 mm
    Cu filters yielded higher CNR to 120 kV X-ray beam.

  • FPD胸部撮影におけるX線線質と肺結節のコントラストノイズ比 胸部ファントムモデルを用いたモンテカルロシミュレーションによる解析

    小田 敍弘, 上原 周三, 中野 努, 田畑 慶人, 水田 正芳, 井手口 忠光, 青木 隆敏

    日本放射線技術学会雑誌   78 ( 2 )   159 - 170   2022.2   ISSN:0369-4305

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    Language:Japanese   Publisher:(公社)日本放射線技術学会  

    CsIフラットパネルを用いた胸部撮影において、四つのX線線質(90kV 0.15mm Cu-filter、90kV 0.2mm Cu-filter、120kV filterなし、120kV 0.2mm Cu-filter)のコントラストノイズ比(CNR)をモンテカルロシミュレーションによって検討した。水の厚さに対する模擬結節のCNRは水の厚さとともに減少がみられ、線質については90kV 0.15Cu+と90kV 0.2Cu+が高くほぼ同じ値を示した。120kV 0.2Cu+はこれより低く、120kV Cu-が最も低い値となった。90kV 0.15Cu+のCNRは120kV Cu-と比べて+30HUは10~15%(水の厚さ8~18cmで変化)、-375HUは12~19%、-620HUは16~25%高くなった。120kV 0.2Cu+に比べては+30HUは8~11%、-375HUは10~15%、-620HUは15~22%高くなった。また、検出器入射面で同一光子数としたCNRは90kV 0.15Cu+と90kV 0.2Cu+が高くほぼ同じ値を示した。120kV 0.2Cu-はこれより低く、120kV 0.2Cu+はさらに低くなっていた。モンテカルロシミュレーションから得たCNRはファントム測定から得られた結果とよく一致していた。

  • Influence of readout process on presampled modulation transfer function in computed radiography system Reviewed

    Yasuyuki Kawaji, Tadamitsu Ideguchi, Fukai Toyofuku, Yoshiharu Higashida

    Optical Engineering   51 ( 11 )   2012.11

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    Language:English  

    DOI: 10.1117/1.OE.51.11.113202

  • Rayleigh and Compton scattering analysis for PMMA in the mammography energy range

    Yoshiki Yamaguchi, Souichiro Kawaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Kenji Tokumori, Yoshiharu Higashida, Fukai Toyofuku

    World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging World Congress on Medical Physics and Biomedical Engineering Diagnostic Imaging   234 - 237   2009.12

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    Language:English   Publishing type:Research paper (other academic)  

    DOI: 10.1007/978-3-642-03879-2-66

  • Reconstruction of mammography x-ray spectrum by using Rayleigh and Compton scattering corrections

    Souichiro Kawaguchi, Yoshiki Yamaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Yoshiharu Higashida, Fukai Toyofuku

    World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging World Congress on Medical Physics and Biomedical Engineering Diagnostic Imaging   231 - 233   2009.12

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    Language:English   Publishing type:Research paper (other academic)  

    DOI: 10.1007/978-3-642-03879-2-65

  • The evaluation of physical imaging properties for digital radiography - the resolution property(the slit method) Reviewed

    Tadamitsu Ideguchi

    Nippon Hoshasen Gijutsu Gakkai zasshi   65 ( 8 )   1109 - 1117   2009.8

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    Language:English  

    DOI: 10.6009/jjrt.65.1109

  • SU‐FF‐I‐65 Relative Contributions of Rayleigh Scattering for PMMA in the Mammography Energy Range Reviewed

    36 ( 6 )   2009.6

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    Purpose: The method of obtaining the primary x‐ray spectrum by the Compton scattering correction has been established for relatively high x‐ray tube voltages. However, the influence of Rayleigh scattering can not be neglected in the mammography energy range. Besides, 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 in mammography. The purpose of this study is to investigate theoretically and experimentally the relative contributions of Rayleigh scattering for PMMA (polymethyl methacrylate) in the mammography energy range. Method and Materials: Fluorescent x‐rays in the energy range of 10 to 25 keV were generated by exciting four metal targets including molybdenum by synchrotron radiation. The fluorescent x‐rays were incident on a sphere of PMMA, and the scattered x‐rays were measured with a CdTe detector at scattering angles of 90, 120, 150, 165 degrees. 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. We also calculated the scattered fluorescent x‐ray spectra using the Monte Carlo simulation and compared them to the measured spectra. Results: The measured ratio of Rayleigh to total scattering cross section was about 30% at 10 keV. The maximum discrepancy of the measured and theoretically calculated values of the ratio was about 30% for the scattering angles of 90 to 165 degrees. However, at the angle of 120 degrees where the overall error might be minimum, the theoretical and experimental values agreed within 2%. Conclusion: Rayleigh and Compton scattering cross sections should be measured more precisely in order to improve the calculation of the primary mammography x‐ray spectrum from the scattered x‐ray spectrum.

    DOI: 10.1118/1.3181185

  • SU‐FF‐I‐55 Reconstruction of Mammography X‐Ray Spectrum Using Rayleigh and Compton Scattering Corrections Reviewed

    36 ( 6 )   2009.6

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    Purpose: An analysis of the x‐ray spectrum is important for quality assurance (QA) and quality control (QC) of a radiographic system. In the case of mammography, the direct measurement of the primary x‐ray spectra under clinical conditions is very difficult and time‐consuming. The method of obtaining the primary x‐ray spectrum by the Compton scattering correction has been established for relatively high x‐ray tube voltages. However, the influence of Rayleigh scattering can not be neglected for mammography. 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 scattering. Method and Materials: The primary x‐ray beam from a 28 kV mammography x‐ray unit was incident on a PMMA (polymethyl methacrylate) sphere scatterer with a diameter of 6 mm. The 90‐degree scattered x‐ray spectrum was measured by using a CdTe semiconductor detector. The measured x‐ray spectrum was separated into three energy regions, and the characteristic x‐ray peaks and bremsstrahlung x‐rays were fitted by Gaussian and quadratic functions. The energy shift corrections of the Compton and Rayleigh components were made at each photon energy channel by splitting the number of photons at each channel into the two scattering components according to the corresponding cross sections. The Monte Carlo simulation of the 90‐degree scattered x‐ray spectra were also performed using the EGS5 code. Results: The reconstructed spectrum agreed fairly well with a directly measured primary x‐ray spectrum. In the Monte Carlo simulation, the scattered x‐ray spectrum calculated for the incidence of the reconstructed x‐ray spectrum showed a very good agreement to the measured scattered x‐ray spectrum. Conclusions: 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.

    DOI: 10.1118/1.3181174

  • The current state of digital mammography Reviewed

    Tadamitsu Ideguchi, Shizunari Yamamoto, Yoshiharu Higashida, Akiko Naruzaki, Toru Muranaka, Motonari Saku

    IRYO - Japanese Journal of National Medical Services   60 ( 12 )   735 - 742   2006.12

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  • Image quality and detection performance of a direct digital radiography system Reviewed

    Tadamitsu Ideguchi, Katsuhiko Matsuda, Kazuhiko Himuro, Rie Kuwahara, Hidetsune Miyazaki, Hiroyuki Hazeyama, Seiji Kumazawa, Yasuyuki Kawaji, Akira Yoshida, Masao Matsumoto, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   62 ( 3 )   425 - 433   2006.3

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    DOI: 10.6009/jjrt.62.425

  • CR-mammography with pixel size of 50 microm and dual-sided reading system effect of the oblique incident of the X-ray beam on imaging properties and detection Reviewed

    Tadamitsu Ideguchi, Yoshiharu Higashida, Fumio Akazawa, Yasuyuki Kawaji, Makoto Zaizen, Mitsuo Sasaki, Yumiko Nakamura, Masafumi Ohki, Fukai Toyofuku, Hirotaka Ikeda

    Nippon Hoshasen Gijutsu Gakkai zasshi   61 ( 6 )   833 - 839   2005.6

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    DOI: 10.6009/jjrt.KJ00003326844

  • Physical imaging properties and low-contrast performance of a newly developed flat-panel digital radiographic system. Reviewed

    Masao Matsumoto, Tatsuya Yamazaki, Makoto Nokita, Shinsuke Hayashida, Akira Yoshida, Tadamitsu Ideguchi, Kazuhiko Himuro, Masafumi Ohki, Seiji Kumazawa, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   61 ( 12 )   1656 - 1665   2005.1

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    DOI: 10.6009/jjrt.KJ00004017357

  • ROC analysis of detection of interval changes in interstitial lung diseases on digital chest radiographs using the temporal subtraction technique Reviewed

    Higashida Yoshiharu, Ideguchi Tadamitsu, Muranaka Toru, Tabata Nobuyuki, Miyajima Ryuichi, Akazawa Fumio, Ikeda Hirotaka, Morimoto Ken, Masafumi Ohki, Toyofuku Fukai, Doi Kunio

    Nippon Acta Radiologica   64 ( 1 )   35 - 40   2004.1

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  • Full-field digital mammography with amorphous silicon-based flat- panel detector physical imaging characteristics and signal detection Reviewed

    Tadamitsu Ideguchi, Yoshiharu Higashida, Kazuhiko Himuro, Masafumi Ohki, Satoru Nakamura, Akira Yoshida, Rie Takagi, Hirohide Hatano, Rie Kuwahara, Makiko Toyonaga, Isamu Tanaka, Fukai Toyofuku

    Nippon Hoshasen Gijutsu Gakkai zasshi   60 ( 3 )   399 - 405   2004.1

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    DOI: 10.6009/jjrt.KJ00000922344

  • New CR system with pixel size of 50μm for digital mammography Physical imaging properties and detection of subtle microcalcifications Reviewed

    22 ( 4 )   218 - 224   2004.1

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    Purpose: To investigate the physical imaging properties and detection of simulated microcalcifications of a new computed radiography (CR) system with a pixel size of 50μm for digital mammography. Materials and Methods: New and conventional CR were employed in this study. The new CR system included a high-resolution imaging plate coupled with the FCR5000MA (50μm pixel pitch) including transparent support and a dual-sided reader. The conventional CR system was coupled with the FCR9000 (100μm pixel pitch). Modulation transfer functions (MTFs) and Wiener spectra (WS) of the new and conventional CR systems were measured. Observer performance tests were conducted to compare the effects of pixel size (50μm vs. 100μm) on the diagnostic accuracy of CR systems in the detection of simulated microcalcifications. Results: The presampling MTF of the new CR system was higher at high frequencies than the conventional CR system. The WS of the new CR system was comparable to that of the conventional CR system at all frequencies. The area under the receiver operating characteristic (ROC) curve (Az) obtained with the new CR and the conventional CR systems were 0.84 and 0.79, respectively. Results showed that the detection of simulated clustered microcalcifications was significantly improved by use of the new CR system compared with the conventional CR system (p<0.05). Conclusion: The new CR mammography system improved physical imaging properties and detection of simulated microcalcifications over conventional CR mammography.

  • Usefulness of the opposite direction for Stenvers' method Reviewed

    Hirotoshi Maruyama, Tadamitsu Ideguchi, Hiroki Ohura, Toshiya Azuma, Shinichi Orita, Kazuhiro Amano, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   59 ( 7 )   872 - 878   2003.7

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    DOI: 10.6009/jjrt.KJ00003174217

  • Canon's flat-panel detector Reviewed

    Masao Matsumoto, Iori Sumida, Tadamitsu Ideguchi, Yasuyuki Kawaji, Kazuhiko Himuro

    Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics   22 ( 4 )   232 - 245   2002

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  • A Study of Risk Management in a Department of Radiology (1) -Receptionist, Plain Radiographic Techniques, Ward Radiographic Techniques, Contrast Radiographic Techniques and Angiography- National Hospital Coadoministrative Study Group Reviewed

    Kozo Kumagai, Shinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   52 ( 9 )   554 - 558   1998.1

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    DOI: 10.11261/iryo1946.52.554

  • A Study of Risk Management in a Department of Radiology (2) -Ct, Mri, Nuclear Medicine, Radiotherapy and Ultrasonography- Reviewed

    Kozo Kumagai, Sinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   52 ( 10 )   601 - 604   1998.1

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    DOI: 10.11261/iryo1946.52.601

  • A Study of Risk Management in a Department of Radiology (3) -Patient'S Question and Complaint- National Hospital Coadoministrative Study Group Reviewed

    Kozo Kumagai, Shinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   52 ( 11 )   664 - 666   1998.1

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    DOI: 10.11261/iryo1946.52.664

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Books

  • 医用画像情報学 改訂5版

    @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( Role: Joint author)

    南山堂  2023.10 

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    Responsible for pages:P100-P108   Language:Japanese   Book type:Scholarly book

  • 新・医用放射線技術実験―基礎編― 第4版

    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( Role: Joint author)

    共立出版  2020.12 

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    Responsible for pages:P280-P286   Language:Japanese   Book type:Scholarly book

  • 医用画像検査技術学 改訂4版

    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( Role: Joint author)

    南山堂  2020.11 

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    Responsible for pages:P146-P205 P213-P260   Language:Japanese   Book type:Scholarly book

  • 人体のメカニズムから学ぶ 画像診断技術学

    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( Role: Joint author)

    メジカルビュー社  2020.4 

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    Responsible for pages:P296-P309   Language:Japanese   Book type:Scholarly book

  • 新・医用放射線科学講座 医用画像情報工学

    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( Role: Joint author)

    医歯薬出版  2018.2 

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    Responsible for pages:P54-P63   Language:Japanese   Book type:Scholarly book

  • 診療放射線技師臨床実習テキスト

    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( Role: Joint author)

    文光堂  2020.6 

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    Responsible for pages:P120-P124   Language:Japanese   Book type:Scholarly book

  • Reconstruction of mammography x-ray spectrum by using Rayleigh and Compton scattering corrections

    Souichiro Kawaguchi, Yoshiki Yamaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Yoshiharu Higashida, Fukai Toyofuku

    2009.12 

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    Responsible for pages:231-233   Language:English  

    DOI: 10.1007/978-3-642-03879-2-65

  • Rayleigh and Compton scattering analysis for PMMA in the mammography energy range

    Yoshiki Yamaguchi, Souichiro Kawaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Kenji Tokumori, Yoshiharu Higashida, Fukai Toyofuku

    2009.12 

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    Responsible for pages:234-237   Language:English  

    DOI: 10.1007/978-3-642-03879-2-66

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Presentations

  • 一対比較法における深層学習を用いた観察者不足改善手法の提案

    #田畑成章, @伊地知哲也, #板井宏孝, #立石賢, #北健斗, @原優菜, @井上敏郎, @井手口忠光

    第51回 日本放射線技術学会秋季学術大会  2023.10 

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    Event date: 2023.10

    Language:Japanese  

    Venue:名古屋市   Country:Japan  

  • X線CT画像における新しい画質評価法SSIMおよびMS-SSIMの検討 Examination of a new image evaluation method SSIM and MS-SSIM in X-ray CT images

    #立石賢, #田畑成章, #板井宏孝, @井手口忠光

    第51回 日本放射線技術学会秋季学術大会  2023.10 

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    Event date: 2023.10

    Language:Japanese  

    Venue:名古屋市   Country:Japan  

  • 円形Edgeを用いた新たな画像鮮鋭度解析法の検討

    #北島和孝, @井手口忠光

    令和5年度秋季(第197回)大会 医用画像情報学会  2023.10 

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    Event date: 2023.10

    Language:Japanese  

    Venue:名古屋市   Country:Japan  

  • Image quality evaluation of digital X-ray images using Structural Similarity and Multi-Scale Structural Similarity

    2023.10 

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    Event date: 2023.10

    Language:Japanese  

    Country:Japan  

  • 円形Edgeを用いた新たな画像鮮鋭度解析法の検討

    北島和孝, 井手口忠光 学生:1人,学生以外:1人

    令和5年度秋季(第197回)大会 医用画像情報学会  2023.10 

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    Event date: 2023.10

    Language:Japanese  

    Venue:名古屋市   Country:Japan  

  • プログラム言語pythonによる一対比較法ソフトウェアの開発 Title: Development of pairwise comparison method software in the programming language Python International conference

    #田畑成章, @伊地知哲也, #板井宏孝, #立石賢, @尾畑麻美, @中村裕範,@井手口忠光

    第79回日本放射線技術学会総会学術大会  2023.4 

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    Event date: 2023.4

    Language:Japanese  

    Venue:パシフィコ横浜   Country:Japan  

  • マルチ施設データを用いた腰椎target EIの検討:ノイズ抑制処理の効果 Title: Validation of target EI for lumbar spine based on multiple-facility data: Effect of noise suppression processing. International conference

    #北 健斗,@田中延和,#田畑成章,@大藤孝文,@猪本奈美,@加藤豊幸,@井手口忠光

    第79回日本放射線技術学会総会学術大会  2023.4 

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    Event date: 2023.4

    Language:Japanese  

    Venue:パシフィコ横浜   Country:Japan  

  • X線CT画像における新しい画像評価法SSIM(MS-SSIM)の検討 Examination of a new image evaluation method SSIM (MS-SSIM) in X-ray CT image International conference

    #立石賢,#田畑成章,#板井宏孝, @井手口忠光

    第79回日本放射線技術学会総会学術大会  2023.4 

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    Event date: 2023.4

    Language:Japanese  

    Venue:パシフィコ横浜   Country:Japan  

  • 胸部X線画像のSSIM評価における測定領域とノイズ抑制処理の強調度の関係 Relationship between measurement region and emphasis of noise suppression processing in SSIM evaluation of chest X-ray image International conference

    @田中延和, #田畑成章, @大藤孝文, @猪本奈美, @加藤豊幸,@井手口忠光

    第79回日本放射線技術学会総会学術大会  2023.4 

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    Event date: 2023.4

    Language:Japanese  

    Venue:パシフィコ横浜   Country:Japan  

  • 画像構造類似度SSIM(MS-SSIM)を用いたデジタルX線画像の画質評価」 Image quality evaluation of digital X-ray images using structural similarity SSIM (MS-SSIM) International conference

    #板井宏孝, @是枝大地, #田畑成章, #立石賢, @井手口忠光

    第79回日本放射線技術学会総会学術大会  2023.4 

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    Event date: 2023.4

    Language:Japanese  

    Venue:パシフィコ横浜   Country:Japan  

  • Examination of SSIM and MS-SSIM as The New Image Evaluation Methods in X-ray CT Images International conference

    2024 European Congress of Radiology  2023.2 

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    Event date: 2023.2 - 2023.3

    Language:English  

    Country:Austria  

  • X線斜入射が散乱線補正処理と低格子比グリッドの併用システムの画質に及ぼす影響

    荒川 桜、田中 延和、井手口 忠光

    第16回九州放射線医療技術学術大会  2021.12 

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    Event date: 2022.12 - 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:佐賀市   Country:Japan  

  • Cycle GAN(GAN)を用いたX線撮影トレーニングツールの開発

    田畑成章,立石賢,板井宏孝,井手口忠光

    第17回九州放射線医療技術学術大会  2022.11 

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    Event date: 2022.11

    Language:Japanese  

    Venue:福岡市(アクロス福岡)   Country:Japan  

  • マルチ施設データを用いたtarget EI決定に関する研究-SSIMによる画質解析-

    仲山明日香, 北 健斗, 田中延和, 田畑成章, 立石 賢, 加藤豊幸,井手口忠光

    第17回九州放射線医療技術学術大会  2022.11 

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    Event date: 2022.11

    Language:Japanese  

    Venue:福岡市(アクロス福岡)   Country:Japan  

  • マルチ施設データを用いたtarget EI決定に関する研究-FNCが画質に与える影響-

    北 健斗, 仲山明日香,田中延和, 田畑成章, 立石 賢, 加藤豊幸,井手口忠光

    第17回九州放射線医療技術学術大会  2022.11 

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    Event date: 2022.11

    Language:Japanese  

    Venue:福岡市(アクロス福岡)   Country:Japan  

  • デジタルX線画像における新しい画質評価法の検討

    板井宏孝,是枝大地,田畑成章,立石賢,井手口忠光

    第17回九州放射線医療技術学術大会  2022.11 

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    Event date: 2022.11

    Language:Japanese  

    Venue:福岡市(アクロス福岡)   Country:Japan  

  • X線CT画像におけるSSIM(MS-SSIM)を用いた新たな画像評価法の検討

    立石賢,田畑成章,板井宏孝,井手口忠光

    第17回九州放射線医療技術学術大会  2022.11 

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    Event date: 2022.11

    Language:Japanese  

    Venue:福岡市(アクロス福岡)   Country:Japan  

  • Evaluation of Emphasis of Noise Suppression Processing Technology Using Structural Similarity Index International conference

    Nobukazu Tanaka, Nariaki Tabata, Takafumi Ohfuji, Toyoyuki Kato, Tadamitsu Ideguchi

    The 1st Internatinal Conference on Radiological Physics and Technology  2022.4 

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    Event date: 2022.4

    Language:English  

    Country:Japan  

  • 腹部領域における線質硬化がDECT仮想単色X線画像に与える影響について

    秋貞幸佑,井手口忠光,近藤雅敏

    第16回九州放射線医療技術学術大会  2021.12 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  • 骨盤撮影における線量指標と画像の評価

    戸上 茉理、田中 延和、Yoon Yongsu、井手口 忠光

    第16回九州放射線医療技術学術大会  2021.12 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:佐賀市   Country:Japan  

  • マルチ施設データを用いたEIt設定に関する研究

    濱田美知,田中延和,加藤豊幸,氷室和彦,中村秀俊,大藤孝文,田中亮治,門崎都,猪本奈美,桑水流純平,井手口忠光

    第16回九州放射線医療技術学術大会  2021.12 

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    Event date: 2021.12

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:佐賀市   Country:Japan  

  • FPDシステムの線量指標と基本的な画像特性の検証

    田中延和,井手口忠光

    第49回日本放射線技術学会秋季学術大会  2021.10 

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    Event date: 2021.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:熊本市   Country:Japan  

  • Relationship Between Exposure Index and Detector Performance for an Indirect-Conversion-Type Flat-Panel Detector System International conference

    Nobukazu Tanaka, Tadamitsu Ideguchi

    Korean Society of Radiological Science Conference (KSRSC)  2021.5 

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    Event date: 2021.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Korea, Republic of  

  • Virtual GridがExposure Indexに与える影響

    林美聖、井手口忠光

    第15回九州放射線医療技術学術大会  2020.11 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長崎市   Country:Japan  

  • Dual Energy CTのデータ収集システムの違いによる画質の検討

    伊津野拓真、鬼塚泰弘、近藤雅敏、井手口忠光

    第15回九州放射線医療技術学術大会  2020.11 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長崎市   Country:Japan  

  • FBPと逐次近似(IR)計算手法による画質評価

    西原晃佑、鬼塚泰弘、近藤雅敏、井手口忠光

    第15回九州放射線医療技術学術大会  2020.11 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長崎市   Country:Japan  

  • Dual Energy CTのデータ収集システムの違いによる画質の検討

    今村瑛三郎、鬼塚泰弘、近藤雅敏、井手口忠光

    第15回九州放射線医療技術学術大会  2020.11 

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:長崎市   Country:Japan  

  • Reconstruction of mammography x-ray spectrum by using Rayleigh and Compton scattering corrections

    Souichiro Kawaguchi, Yoshiki Yamaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Yoshiharu Higashida, Fukai Toyofuku

    World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging  2009.12 

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    Event date: 2009.9

    Language:English  

    Country:Germany  

  • Rayleigh and Compton scattering analysis for PMMA in the mammography energy range

    Yoshiki Yamaguchi, Souichiro Kawaguchi, Hidetaka Arimura, Junji Morishita, Masafumi Ohki, Yoshinori Uno, Tadamitsu Ideguchi, Kenji Tokumori, Yoshiharu Higashida, Fukai Toyofuku

    World Congress on Medical Physics and Biomedical Engineering: Diagnostic Imaging  2009.12 

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    Event date: 2009.9

    Language:English  

    Country:Germany  

  • 胸部X線画像のSSIM評価における測定領域とノイズ抑制処理の強調度の関係

    田中 延和, 田畑 成章, 大藤 孝文, 猪本 奈美, 加藤 豊幸, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2023.3  (公社)日本放射線技術学会

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  • 画像構造類似度Structural Similarity(SSIM)およびマルチスケール構造類似度Multi-Scale SSIMを用いたデジタルX線画像の画質評価

    板井 宏孝, 是枝 大地, 田畑 成章, 北口 貴教, 今西 美嘉, 大浦 弘樹, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2023.3  (公社)日本放射線技術学会

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  • 一対比較法における深層学習を用いた観察者不足改善手法の提案 ファントム形状による影響

    田畑 成章, 伊地知 哲也, 板井 宏孝, 北 健斗, 加藤 伸一, 井上 敏朗, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2024.3  (公社)日本放射線技術学会

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  • マルチ施設データを用いた腰椎Target EIの検討 ノイズ抑制処理の効果

    北 健斗, 田中 延和, 田畑 成章, 大藤 孝文, 猪本 奈美, 加藤 豊幸, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2023.3  (公社)日本放射線技術学会

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  • プログラム言語Pythonによる一対比較法ソフトウェアの開発

    田畑 成章, 伊地知 哲也, 板井 宏孝, 立石 賢, 尾畑 麻美, 中村 裕範, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2023.3  (公社)日本放射線技術学会

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  • ノイズ抑制処理による胸部target El低減の可能性 新しい画質評価法SSIMと視覚評価を用いた検討

    北 健斗, 田中 延和, 田畑 成章, 大藤 孝文, 猪本 奈美, 加藤 豊幸, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2024.3  (公社)日本放射線技術学会

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  • X線CT画像における新しい画質評価法SSIMおよびMS-SSIMの検討

    立石 賢, 田畑 成章, 板井 宏孝, 北 健斗, 井手口 忠光

    日本放射線技術学会雑誌  2023.9  (公社)日本放射線技術学会

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  • X線CT画像における新しい画像評価法:Multiscale Structural Similarity(MS-SSIM)の検討

    立石 賢, 田畑 成章, 板井 宏孝, 井手口 忠光

    日本放射線技術学会総会学術大会予稿集  2023.3  (公社)日本放射線技術学会

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  • Structural Similarity Indexを用いたノイズ抑制処理技術の重要性に関する評価(Evaluation of Emphasis of Noise Suppression Processing Technology Using Structural Similarity Index)

    Tanaka Nobukazu, Tabata Nariaki, Ohfuji Takafumi, Imoto Nami, Kato Toyoyuki, Ideguchi Tadamitsu

    日本放射線技術学会総会学術大会予稿集  2022.3  (公社)日本放射線技術学会

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MISC

  • 研究室紹介(画像通信Vol.45 No.2)

    井手口忠光

    日本放射線技術学会 画像部会   2022.10

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    Language:Japanese  

  • 日本放射線技術史(第3巻)

    東出 了、井手口忠光

    日本放射線技術学会   2022.4

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.  

  • Influence of readout process on presampled modulation transfer function in computed radiography system Reviewed

    Yasuyuki Kawaji, Tadamitsu Ideguchi, Fukai Toyofuku, Yoshiharu Higashida

    Optical Engineering   2012.11

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    Language:English  

    DOI: 10.1117/1.OE.51.11.113202

  • The evaluation of physical imaging properties for digital radiography - the resolution property(the slit method) Reviewed

    Tadamitsu Ideguchi

    Nippon Hoshasen Gijutsu Gakkai zasshi   2009.8

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    DOI: 10.6009/jjrt.65.1109

  • SU‐FF‐I‐55 Reconstruction of Mammography X‐Ray Spectrum Using Rayleigh and Compton Scattering Corrections Reviewed

    2009.6

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    Purpose: An analysis of the x‐ray spectrum is important for quality assurance (QA) and quality control (QC) of a radiographic system. In the case of mammography, the direct measurement of the primary x‐ray spectra under clinical conditions is very difficult and time‐consuming. The method of obtaining the primary x‐ray spectrum by the Compton scattering correction has been established for relatively high x‐ray tube voltages. However, the influence of Rayleigh scattering can not be neglected for mammography. 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 scattering. Method and Materials: The primary x‐ray beam from a 28 kV mammography x‐ray unit was incident on a PMMA (polymethyl methacrylate) sphere scatterer with a diameter of 6 mm. The 90‐degree scattered x‐ray spectrum was measured by using a CdTe semiconductor detector. The measured x‐ray spectrum was separated into three energy regions, and the characteristic x‐ray peaks and bremsstrahlung x‐rays were fitted by Gaussian and quadratic functions. The energy shift corrections of the Compton and Rayleigh components were made at each photon energy channel by splitting the number of photons at each channel into the two scattering components according to the corresponding cross sections. The Monte Carlo simulation of the 90‐degree scattered x‐ray spectra were also performed using the EGS5 code. Results: The reconstructed spectrum agreed fairly well with a directly measured primary x‐ray spectrum. In the Monte Carlo simulation, the scattered x‐ray spectrum calculated for the incidence of the reconstructed x‐ray spectrum showed a very good agreement to the measured scattered x‐ray spectrum. Conclusions: 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.

    DOI: 10.1118/1.3181174

  • SU‐FF‐I‐65 Relative Contributions of Rayleigh Scattering for PMMA in the Mammography Energy Range Reviewed

    2009.6

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    Purpose: The method of obtaining the primary x‐ray spectrum by the Compton scattering correction has been established for relatively high x‐ray tube voltages. However, the influence of Rayleigh scattering can not be neglected in the mammography energy range. Besides, 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 in mammography. The purpose of this study is to investigate theoretically and experimentally the relative contributions of Rayleigh scattering for PMMA (polymethyl methacrylate) in the mammography energy range. Method and Materials: Fluorescent x‐rays in the energy range of 10 to 25 keV were generated by exciting four metal targets including molybdenum by synchrotron radiation. The fluorescent x‐rays were incident on a sphere of PMMA, and the scattered x‐rays were measured with a CdTe detector at scattering angles of 90, 120, 150, 165 degrees. 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. We also calculated the scattered fluorescent x‐ray spectra using the Monte Carlo simulation and compared them to the measured spectra. Results: The measured ratio of Rayleigh to total scattering cross section was about 30% at 10 keV. The maximum discrepancy of the measured and theoretically calculated values of the ratio was about 30% for the scattering angles of 90 to 165 degrees. However, at the angle of 120 degrees where the overall error might be minimum, the theoretical and experimental values agreed within 2%. Conclusion: Rayleigh and Compton scattering cross sections should be measured more precisely in order to improve the calculation of the primary mammography x‐ray spectrum from the scattered x‐ray spectrum.

    DOI: 10.1118/1.3181185

  • The current state of digital mammography Reviewed

    Tadamitsu Ideguchi, Shizunari Yamamoto, Yoshiharu Higashida, Akiko Naruzaki, Toru Muranaka, Motonari Saku

    IRYO - Japanese Journal of National Medical Services   2006.12

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  • Image quality and detection performance of a direct digital radiography system Reviewed

    Tadamitsu Ideguchi, Katsuhiko Matsuda, Kazuhiko Himuro, Rie Kuwahara, Hidetsune Miyazaki, Hiroyuki Hazeyama, Seiji Kumazawa, Yasuyuki Kawaji, Akira Yoshida, Masao Matsumoto, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   2006.3

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    DOI: 10.6009/jjrt.62.425

  • CR-mammography with pixel size of 50 microm and dual-sided reading system effect of the oblique incident of the X-ray beam on imaging properties and detection Reviewed

    Tadamitsu Ideguchi, Yoshiharu Higashida, Fumio Akazawa, Yasuyuki Kawaji, Makoto Zaizen, Mitsuo Sasaki, Yumiko Nakamura, Masafumi Ohki, Fukai Toyofuku, Hirotaka Ikeda

    Nippon Hoshasen Gijutsu Gakkai zasshi   2005.6

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    Language:English  

    DOI: 10.6009/jjrt.KJ00003326844

  • Physical imaging properties and low-contrast performance of a newly developed flat-panel digital radiographic system. Reviewed

    Masao Matsumoto, Tatsuya Yamazaki, Makoto Nokita, Shinsuke Hayashida, Akira Yoshida, Tadamitsu Ideguchi, Kazuhiko Himuro, Masafumi Ohki, Seiji Kumazawa, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   2005.1

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    Language:English  

    DOI: 10.6009/jjrt.KJ00004017357

  • ROC analysis of detection of interval changes in interstitial lung diseases on digital chest radiographs using the temporal subtraction technique Reviewed

    Higashida Yoshiharu, Ideguchi Tadamitsu, Muranaka Toru, Tabata Nobuyuki, Miyajima Ryuichi, Akazawa Fumio, Ikeda Hirotaka, Morimoto Ken, Masafumi Ohki, Toyofuku Fukai, Doi Kunio

    Nippon Acta Radiologica   2004.1

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    Language:English  

  • Full-field digital mammography with amorphous silicon-based flat- panel detector physical imaging characteristics and signal detection Reviewed

    Tadamitsu Ideguchi, Yoshiharu Higashida, Kazuhiko Himuro, Masafumi Ohki, Satoru Nakamura, Akira Yoshida, Rie Takagi, Hirohide Hatano, Rie Kuwahara, Makiko Toyonaga, Isamu Tanaka, Fukai Toyofuku

    Nippon Hoshasen Gijutsu Gakkai zasshi   2004.1

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    Language:English  

    DOI: 10.6009/jjrt.KJ00000922344

  • New CR system with pixel size of 50μm for digital mammography Physical imaging properties and detection of subtle microcalcifications Reviewed

    2004.1

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    Language:English  

    Purpose: To investigate the physical imaging properties and detection of simulated microcalcifications of a new computed radiography (CR) system with a pixel size of 50μm for digital mammography. Materials and Methods: New and conventional CR were employed in this study. The new CR system included a high-resolution imaging plate coupled with the FCR5000MA (50μm pixel pitch) including transparent support and a dual-sided reader. The conventional CR system was coupled with the FCR9000 (100μm pixel pitch). Modulation transfer functions (MTFs) and Wiener spectra (WS) of the new and conventional CR systems were measured. Observer performance tests were conducted to compare the effects of pixel size (50μm vs. 100μm) on the diagnostic accuracy of CR systems in the detection of simulated microcalcifications. Results: The presampling MTF of the new CR system was higher at high frequencies than the conventional CR system. The WS of the new CR system was comparable to that of the conventional CR system at all frequencies. The area under the receiver operating characteristic (ROC) curve (Az) obtained with the new CR and the conventional CR systems were 0.84 and 0.79, respectively. Results showed that the detection of simulated clustered microcalcifications was significantly improved by use of the new CR system compared with the conventional CR system (p<0.05). Conclusion: The new CR mammography system improved physical imaging properties and detection of simulated microcalcifications over conventional CR mammography.

  • Usefulness of the opposite direction for Stenvers' method Reviewed

    Hirotoshi Maruyama, Tadamitsu Ideguchi, Hiroki Ohura, Toshiya Azuma, Shinichi Orita, Kazuhiro Amano, Yoshiharu Higashida

    Nippon Hoshasen Gijutsu Gakkai zasshi   2003.7

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    Language:English  

    DOI: 10.6009/jjrt.KJ00003174217

  • Canon's flat-panel detector Reviewed

    Masao Matsumoto, Iori Sumida, Tadamitsu Ideguchi, Yasuyuki Kawaji, Kazuhiko Himuro

    Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics   2002

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    Language:English  

  • A Study of Risk Management in a Department of Radiology (1) -Receptionist, Plain Radiographic Techniques, Ward Radiographic Techniques, Contrast Radiographic Techniques and Angiography- National Hospital Coadoministrative Study Group Reviewed

    Kozo Kumagai, Shinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   1998.1

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    Language:English  

    DOI: 10.11261/iryo1946.52.554

  • A Study of Risk Management in a Department of Radiology (2) -Ct, Mri, Nuclear Medicine, Radiotherapy and Ultrasonography- Reviewed

    Kozo Kumagai, Sinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   1998.1

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    Language:English  

    DOI: 10.11261/iryo1946.52.601

  • A Study of Risk Management in a Department of Radiology (3) -Patient'S Question and Complaint- National Hospital Coadoministrative Study Group Reviewed

    Kozo Kumagai, Shinichi Orita, Nobuyuki Tabata, Tsukasa Sakemoto, Takumi Iseri, Hiromi Nishimoto, Tadamitsu Ideguchi

    IRYO - Japanese Journal of National Medical Services   1998.1

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    Language:English  

    DOI: 10.11261/iryo1946.52.664

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Professional Memberships

  • 日本放射線技術学会

  • 日本放射線技術学会 画像部会

  • 日本医用画像情報学会

  • 日本診療放射線技師会

  • 日本診療放射線技師会

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  • 日本放射線技術学会, 日本放射線技術学会画像分科会, 日本医用画像情報学会, 日本放射線技師会

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  • 日本放射線技術学会 画像部会

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  • 日本医用画像情報学会

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Committee Memberships

  • 九州大学   地域国際連携推進・FD連携委員会  

    2023.4 - 2025.3   

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    Committee type:Other

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  • 九州大学   医療系統合教育研究センター 委員  

    2021.4 - 2023.3   

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    Committee type:Other

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  • 九州大学   教務委員会 委員  

    2021.4 - 2023.3   

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    Committee type:Other

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  • 九州大学   学生委員会 委員  

    2020.4 - 2022.3   

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    Committee type:Other

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  • 日本医用画像情報学会   編集委員   Domestic

    2016.6 - 2011.5   

  • 日本放射線技術学会   九州支部 支部長   Domestic

    2015.4 - 2019.3   

  • Executive   Domestic

    2014.5 - 2026.4   

  • 日本医用画像情報学会   理事  

    2014.5 - 2023.4   

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  • Executive   Domestic

    2006.4 - 2014.3   

  • 日本放射線技術学会   常任理事   Domestic

    2006.4 - 2014.3   

  • Councilor   Domestic

    2006.4 - 2010.3   

  • Steering committee member   Domestic

    2005.4 - 2009.3   

  • 日本放射線技術学会   画像分科会 委員   Domestic

    2005.4 - 2009.3   

  • Executive   Domestic

    2003.4 - 2006.3   

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Academic Activities

  • 講演

    令和5年度 九州国立病院機構診療放射線技師会 中九州地区研修会  ( 大分医療センター 大会議室 ) 2023.6

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • 令和5年度 九州国立病院機構診療放射線技師会 中九州地区研修会

    ( 大分医療センター 大会議室 Japan ) 2023.6

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    Type:Competition, symposium, etc. 

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  • 実行委員

    第4回 日本保健物理学会・日本放射線安全管理学会合同大会  ( 九州大学 伊都キャンパス 椎木講堂 ) 2022.11

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    Type:Competition, symposium, etc. 

    Number of participants:600

  • 第4回 日本保健物理学会・日本放射線安全管理学会合同大会

    ( 九州大学 伊都キャンパス 椎木講堂 Japan ) 2022.11

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    Type:Competition, symposium, etc. 

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  • 講演

    第13回 日本放射線技術学会九州支部 九州医用画像コミュニティ  ( 九州大学 Web Zoom ) 2022.6

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • 第13回 日本放射線技術学会九州支部 九州医用画像コミュニティ

    ( 九州大学 Web Zoom Japan ) 2022.6

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    Type:Competition, symposium, etc. 

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  • 大会長

    医用画像情報学会令和3年度春季(第192回)大会  ( 九州大学(Web) ) 2022.2

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    Type:Competition, symposium, etc. 

    Number of participants:55

  • 特別講演, 座長

    医用画像情報学会令和3年度春季(第192回)大会  ( 九州大学(Web) ) 2022.2

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    Type:Competition, symposium, etc. 

    Number of participants:55

  • 医用画像情報学会令和3年度春季(第192回)大会

    ( 九州大学(Web) Japan ) 2022.2

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    Type:Competition, symposium, etc. 

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  • 座長

    令和3年度第1回新ニーズに対応する九州がんプロ養成プラン 先端医用量子線技術科学コース講演会  ( 九州大学(Web) ) 2021.11

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    Type:Competition, symposium, etc. 

    Number of participants:80

  • Chairperson International contribution

    Symposium on Intelligent Data Science for Radiological Imaging (iDSRI) between University Malaya and Kyushu University  ( Japan ) 2021.5

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    Type:Competition, symposium, etc. 

  • Screening of academic papers

    Role(s): Peer review

    2021

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:2

  • Screening of academic papers

    Role(s): Peer review

    2020

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:2

    Proceedings of domestic conference Number of peer-reviewed papers:10

  • Screening of academic papers

    Role(s): Peer review

    2019

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    Type:Peer review 

    Proceedings of domestic conference Number of peer-reviewed papers:20

  • Screening of academic papers

    Role(s): Peer review

    2018

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

    Proceedings of domestic conference Number of peer-reviewed papers:20

  • Screening of academic papers

    Role(s): Peer review

    2017

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • 実行委員

    日本放射線技術学会 第69回学術大会  ( パシフィコ横浜 ) 2012.4

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    Type:Competition, symposium, etc. 

    Number of participants:13,000

  • Screening of academic papers

    Role(s): Peer review

    2009

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • Screening of academic papers

    Role(s): Peer review

    2007

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • 日本医用画像情報学会

    2006.4 - 2011.3

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    Type:Academic society, research group, etc. 

  • シンポジスト

    日本放射線技術学会 第61回総会学術大会  ( パシフィコ横浜 ) 2005.4

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    Type:Competition, symposium, etc. 

    Number of participants:13,000

  • Screening of academic papers

    Role(s): Peer review

    2005

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • シンポジスト

    日本放射線技術学会 九州部会地方会  ( 熊本市 ) 2003.9

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    Type:Competition, symposium, etc. 

    Number of participants:500

  • Screening of academic papers

    Role(s): Peer review

    2003

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    Type:Peer review 

    Number of peer-reviewed articles in Japanese journals:1

  • シンポジスト

    第3回厚生省九州医療技術学会  ( 福岡市 ) 2001.1

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    Type:Competition, symposium, etc. 

    Number of participants:150

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Research Projects

  • 本共同研究では、九州大学医学部保健学科放射線技術科学専攻に導入済みの富士フイルム株式会社の製品を使用し、定量的で客観的な画質の比較と、それらの製品(含むソフトウェア)の有効な活用法について共同研究を行う。

    2023.4 - 2025.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 本共同研究では、九州大学医学部保健学科放射線技術科学専攻に導入済みの富士フイルム株式会社の製品を使用し、定量的で客観的な画質の比較と、それらの製品(含むソフトウェア)の有効な活用法について共同研究を行う。

    2023.4 - 2024.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 本共同研究では、九州大学医学部保健学科放射線技術科学専攻に導入済みの富士フイルム株式会社の製品を使用し、定量的で客観的な画質の比較と、それらの製品(含むソフトウェア)の有効な活用法について共同研究を行う。

    2022.4 - 2023.3

    共同研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 本共同研究では、九州大学医学部保健学科放射線技術科学専攻に導入済みの富士フイルム株式会社の製品を使用し、定量的で客観的な画質の比較と、それらの製品(含むソフトウェア)の有効な活用法について共同研究を行う。

    2019.3 - 2022.3

    受託研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

  • 本共同研究では、九州大学医学部保健学科放射線技術科学専攻に導入済みの富士フイルム株式会社の製品を使用し、定量的で客観的な画質の比較と、それらの製品(含むソフトウェア)の有効な活用法について共同研究を行う。

    2019.3 - 2021.3

    受託研究

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    Authorship:Principal investigator  Grant type:Other funds from industry-academia collaboration

Class subject

  • 画像解剖学演習Ⅱ

    2024.6 - 2024.8   Summer quarter

  • 臨地実習

    2024.4 - 2025.3   Full year

  • 医用量子線科学特別研究(井手口准教授)

    2024.4 - 2025.3   Full year

  • 放射線技術科学入門Ⅰ

    2024.4 - 2024.9   First semester

  • 放射線画像技術学Ⅱ

    2024.4 - 2024.9   First semester

  • 放射線機器学実験

    2024.4 - 2024.6   Spring quarter

  • 画像解剖学演習Ⅰ

    2024.4 - 2024.6   Spring quarter

  • 医用画像情報学Ⅱ

    2023.12 - 2024.2   Winter quarter

  • 放射線技術科学入門Ⅱ

    2023.10 - 2024.3   Second semester

  • 品質管理論

    2023.10 - 2024.3   Second semester

  • 医用画像評価学

    2023.10 - 2024.3   Second semester

  • 放射線画像技術学実習

    2023.10 - 2024.3   Second semester

  • 医用画像情報学Ⅰ

    2023.10 - 2023.12   Fall quarter

  • 医療安全学

    2023.10 - 2023.12   Fall quarter

  • 臨地実習

    2023.4 - 2024.3   Full year

  • 医用量子線科学特別研究(井手口准教授)

    2023.4 - 2024.3   Full year

  • 放射線技術科学入門Ⅰ

    2023.4 - 2023.9   First semester

  • 放射線画像技術学Ⅱ

    2023.4 - 2023.9   First semester

  • 放射線画像技術学Ⅰ

    2023.4 - 2023.9   First semester

  • 放射線機器学実験

    2023.4 - 2023.6   Spring quarter

  • 放射性同位元素検査技術学

    2023.4 - 2023.6   Spring quarter

  • 放射化学実験

    2022.12 - 2023.2   Winter quarter

  • 放射線技術科学入門Ⅱ

    2022.10 - 2023.3   Second semester

  • 品質管理論

    2022.10 - 2023.3   Second semester

  • 医用画像評価学

    2022.10 - 2023.3   Second semester

  • 放射線画像技術学実習

    2022.10 - 2023.3   Second semester

  • 画像解剖学演習

    2022.10 - 2023.3   Second semester

  • 医用画像情報学

    2022.10 - 2023.3   Second semester

  • 医療安全学

    2022.10 - 2022.12   Fall quarter

  • 医用量子線科学特別研究(井手口准教授)

    2022.4 - 2023.3   Full year

  • 臨地実習

    2022.4 - 2023.3   Full year

  • 放射線画像技術学Ⅱ

    2022.4 - 2022.9   First semester

  • 放射線技術科学入門Ⅰ

    2022.4 - 2022.9   First semester

  • 放射性同位元素検査技術学

    2022.4 - 2022.6   Spring quarter

  • 放射線機器学実験

    2022.4 - 2022.6   Spring quarter

  • 放射化学実験

    2021.12 - 2022.2   Winter quarter

  • 品質管理論

    2021.10 - 2022.3   Second semester

  • 放射線診断機器学

    2021.10 - 2022.3   Second semester

  • 医用画像情報学

    2021.10 - 2022.3   Second semester

  • 画像解剖学演習

    2021.10 - 2022.3   Second semester

  • 放射線画像技術学実習

    2021.10 - 2022.3   Second semester

  • 医用画像評価学

    2021.10 - 2022.3   Second semester

  • 放射線画像技術学Ⅱ

    2021.10 - 2022.3   Second semester

  • 医療安全学

    2021.10 - 2021.12   Fall quarter

  • 医用量子線科学特別研究(井手口准教授)

    2021.4 - 2022.3   Full year

  • 臨地実習

    2021.4 - 2022.3   Full year

  • 放射線技術科学入門Ⅰ

    2021.4 - 2021.9   First semester

  • 放射性同位元素検査技術学

    2021.4 - 2021.6   Spring quarter

  • X線CT画像技術学

    2021.4 - 2021.6   Spring quarter

  • 放射線機器学実験

    2021.4 - 2021.6   Spring quarter

  • 放射化学実験

    2020.12 - 2021.2   Winter quarter

  • Medical Image Sciences

    2020.10 - 2021.3   Second semester

  • 放射線技術科学入門Ⅱ

    2020.10 - 2021.3   Second semester

  • 放射線診断機器学

    2020.10 - 2021.3   Second semester

  • 医用画像情報学

    2020.10 - 2021.3   Second semester

  • 画像解剖学演習

    2020.10 - 2021.3   Second semester

  • 放射線画像技術学実習

    2020.10 - 2021.3   Second semester

  • 医用画像評価学

    2020.10 - 2021.3   Second semester

  • 放射線画像技術学Ⅱ

    2020.10 - 2021.3   Second semester

  • 品質管理論

    2020.10 - 2021.3   Second semester

  • 医用画像科学論

    2020.10 - 2021.3   Second semester

  • 医療安全学

    2020.10 - 2020.12   Fall quarter

  • 医療系統合教育科目「インフォームドコンセント」

    2020.6 - 2020.8   Summer quarter

  • 医用量子線科学特別研究(井手口准教授)

    2020.4 - 2021.3   Full year

  • 放射性同位元素検査技術学

    2020.4 - 2020.6   Spring quarter

  • X線CT画像技術学

    2020.4 - 2020.6   Spring quarter

  • 放射線機器学実験

    2020.4 - 2020.6   Spring quarter

  • 放射化学実験

    2019.12 - 2020.2   Winter quarter

  • Medical Image Sciences

    2019.10 - 2020.3   Second semester

  • 放射線診断機器学

    2019.10 - 2020.3   Second semester

  • 医用画像情報学

    2019.10 - 2020.3   Second semester

  • 画像解剖学演習

    2019.10 - 2020.3   Second semester

  • 放射線画像技術学実習

    2019.10 - 2020.3   Second semester

  • 医用画像評価学

    2019.10 - 2020.3   Second semester

  • 放射線画像技術学Ⅱ

    2019.10 - 2020.3   Second semester

  • 品質管理論

    2019.10 - 2020.3   Second semester

  • 医用画像科学論

    2019.10 - 2020.3   Second semester

  • 医療安全学

    2019.10 - 2019.12   Fall quarter

  • 医療安全学Ⅱ

    2024.12 - 2025.2   Winter quarter

  • 医用画像情報学Ⅱ

    2024.12 - 2025.2   Winter quarter

  • 放射線画像技術学実習

    2024.10 - 2025.3   Second semester

  • 放射線技術科学入門Ⅱ

    2024.10 - 2025.3   Second semester

  • 医用画像評価学

    2024.10 - 2025.3   Second semester

  • 放射線診断機器学Ⅰ

    2024.10 - 2024.12   Fall quarter

  • 放射性同位元素検査技術学

    2024.10 - 2024.12   Fall quarter

  • 医療安全学Ⅰ

    2024.10 - 2024.12   Fall quarter

  • 医用画像情報学Ⅰ

    2024.10 - 2024.12   Fall quarter

  • 画像解剖学演習Ⅱ

    2024.6 - 2024.8   Summer quarter

  • 臨地実習

    2024.4 - 2025.3   Full year

  • 医用量子線科学特別研究(井手口准教授)

    2024.4 - 2025.3   Full year

  • 放射線画像技術学Ⅱ

    2024.4 - 2024.9   First semester

  • 放射線技術科学入門Ⅰ

    2024.4 - 2024.9   First semester

  • 画像解剖学演習Ⅰ

    2024.4 - 2024.6   Spring quarter

  • 放射線機器学実験

    2024.4 - 2024.6   Spring quarter

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FD Participation

  • 2023.9   Role:Planning   Title:保健学部門FD 大学教育における対話型・生成系人工知能(AI)の活用

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2023.9   Role:Participation   Title:九州大学ラーニングアナリティクスセンター第2回シンポジウム「生成系AIとラーニングアナリティクスによる新たな教育学習支援の可能性」

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2022.9   Role:Participation   Title:保健学部門における国際化の推進とグローバル人材の育成(9/28 13:00~16:00)

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2021.9   Role:Participation   Title:医学部保健学科FD With/Postコロナ時代の保健学実習・講義のあり方(2021年9月22日)

    Organizer:Undergraduate school department

  • 2021.9   Role:Participation   Title:JST次世代研究者挑戦的研究プログラム説明会(2021年9月16日)

    Organizer:University-wide

  • 2021.3   Role:Participation   Title:M2B 学習支援システム講習会

    Organizer:University-wide

  • 2020.8   Role:Participation   Title:令和2年度IDE大学セミナー 大学教職員の多様な働き方について

    Organizer:University-wide

  • 2019.9   Role:Participation   Title:第17回 九州大学医学部保健学科 公開講座

    Organizer:Undergraduate school department

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Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2019  純真学園大学 大学院  Classification:Part-time lecturer  Domestic/International Classification:Japan 

    Semester, Day Time or Duration:2019年度 後期 金曜日の7限目 土曜日の2限目

Participation in international educational events, etc.

  • 2023.11

    地域国際連携推進委員会

    The 18th International Forum of Health Sciences in Kyushu University, Nov.24 (Fri.) 2023

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    Venue:福岡市

    Number of participants:120

  • 2022.10

    地域国際連携推進委員会

    The 17th International Forum of Health Sciences in Kyushu University , Oct 28 (Fri .) 2022

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    Venue:福岡市(on-line Zoom)

  • 2022.9

    iDSRI UM-KU committee

    3rd Symposium on Intelligent Data Science for Radiological Imaging (iDSRI) between University Malaya and Kyushu University

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    Venue:Malaya-Fukuoka city (Zoom on-line)

  • 2021.11

    地域国際連携推進委員会

    The 16th International Forum of Health Sciences in Kyushu University

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    Venue:日本 福岡市(on line)

  • 2021.9

    iDSRI UM-KU committee

    Symposium on Intelligent Data Science for Radiological Imaging (iDSRI) between University Malaya and Kyushu University

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    Venue:Online (Zoom)

  • 2020.11

    地域国際連携推進委員会

    15th 保健学科国際フォーラム

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    Venue:日本 福岡市

    Number of participants:100

  • 2019.11

    地域国際連携推進委員会

    保健学科国際フォーラム

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    Venue:日本 福岡市

    Number of participants:100

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Other educational activity and Special note

  • 2023  Class Teacher 

  • 2022  Class Teacher 

  • 2021  Class Teacher 

  • 2020  Class Teacher 

Outline of Social Contribution and International Cooperation activities

  • 公益社団法人日本放射線技術学会 2015~2019年度 九州支部 支部長

    公益社団法人日本放射線技術学会 2019・2020年度 代議員(任期:2018年7月31日~次回代議員選挙終了まで)

    公益社団法人日本放射線技術学会 2006・2010年度 評議員