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Researcher Information

last modified：2024/04/07

Professor　ICHIKAWA Katsuhiro

Mail

Faculty, Affiliation

Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences　Department of Quantum Medical Technology, Institute of Medical, Pharmaceutical and Health Sciences
Professor

College and School Educational Field

Division of Health Sciences, Graduate School of Medical Science
Division of Health Sciences，Graduate School of Medical Science
Department of Radiological Technology，School of Health Sciences, College of Medical, Pharmaceutical and Health Sciences

Laboratory

Ichikawa Laboratory　TEL:076-265-2528　FAX:076-234-4366

Academic Background

【Degree】
Ph.D.

Career

Year & Month of Birth

Academic Society

Japanese Society of Radiological Technology
Japanese Society of Radiological Technology
Japanese Society of CT technology
Medical Imaging and Information Sciences
Japanese Society of CT technology
Japanese Society of CT technology
Medical Imaging and Information Sciences
Medical Imaging and Information Sciences
The Society of Photographic Science and Technology of Japan

Award

○Best presentation award(2016/06)
○Best presentation award(2011/04)
○Paper award(2009/06/06)
○paper award(2005/06/01)
○paper award(2003/04/01)
○poster award(1998/04/01)
○paper award(1994/04/01)
○paper award(1994/04/01)
○paper award(1994/04/01)
○paper award(1994/04/01)
○paper award(1994/04/01)
○Excellent Student Award(2021/04/18)
○Silver Award(2021/04/18)
○Silver Award(2021/04/18)
○Silver prize(2019/04/14)
○Silver prize(2019/04/14)
○Silver prize(2019/04/14)

Specialities

Radiation science

Speciality Keywords

computed tomography, digital radiography, display

Research Themes

Image analysis for computed tomography (CT)

New measurement method of resolution property for digital radiography

Development of new technologies for medical display

Books

  • 　Katsuhiro Ichikawa　CT super basics　Ohmsha　2019/03/27
  • 　Katsuhiro Ichikawa　CT super basic　2015/08
  • 　Physics and clinical use of X-ray CT　ohmsha　2023/01/16
  • 　Physics and clinical use of X-ray CT　ohmsha　2011/10

Papers

  • 　Comparative evaluation of image quality among different detector configurations using area detector computed tomography　三浦洋平，市川勝弘，藤村一郎，他　Radiol Phys Technol. 　11　1　54-60　2018/07
  • 　 X-ray dose reduction using additional copper filtration for abdominal digital radiography: Evaluation using signal difference-to-noise ratio.　Kawashima H, Ichikawa K, Nagasou D, Hattori M.　Physica Medica　34　2　65-71　2017/02
  • 　Image Quality and Clinical Usefulness of Ray-summation Image Reconstructed from CT Data, Compared with Digital Radiography　Syogo Suzuki, Katsuhiro Ichikawa　73　5　372-381　2017/05
  • 　A New Contrast Enhancement Protocol for Subtraction Coronary Computed Tomography Requiring a Short Breath-Holding Time.　Yamaguchi T, Ichikawa K, Takahashi D, Sugaya T, Furuya J, Igarashi K.　Academic Radiology　24　1　38-44　2016/08
  • 　Objective assessment of low-contrast computed tomography images with iterative reconstruction　Urikura A, Takanori H, Ichikawa K, Nishimaru E, Hoshino T, Yoshida T, et al. 　Physica Medica　32　8　992-998　2016/08

show all

  • 　Optimization of scan timing for aortic computed tomographic angiography using the test bolus injection technique　Hoshino T, Ichikawa K, Hara T, Terakawa S, Hosomi K, Nishimura K, Takayama K　Acta Radiologica　57　7　829-836　2016
  • 　Temporal resolution measurement of 128-slice dual source and 320-row area detector computed tomography scanners in helical acquisition mode using the impulse method　Hara T, Urikura A, Ichikawa K, Hoshino T, Nishimaru E, Niwa S. 　Physica Medica　32　4　625-630　2016/04
  • 　Accuracy of measuring half- and quarter-value layers and appropriate aperture width of a convenient method using a lead-covered case in X-ray computed tomography　Matsubara K, Ichikawa K, Murasaki Y, Hirosawa A, Koshida K　J Appl Clin Med Phys　15　1　309-316　2014
  • 　Application of a variable filter for presampled modulation transfer function analysis with the edge method　Higashide R, Ichikawa K, Kunitomo H, Ohashi K　Radiol Phys Technol.　8　2　320-330　2015
  • 　Assessment of temporal resolution of multi-detector row computed tomography in helical acquisition mode using the impulse method 　Ichikawa K, Hara T, Urikura A, Takata T, Ohashi K　Physica Medica　31　4　374-381　2015
  • 　Spatial resolution measurement for iterative reconstruction by use of image-averaging techniques in computed tomography　Urikura A, Ichikawa K, Hara T, Nishimaru E, Nakaya Y　Radiol Phys Technol.　7　2　358-366　2014
  • 　A phantom study investigating the relationship between ground-glass opacity visibility and physical detectability index in low-dose chest computed tomography 　Ichikawa K, Kobayashi T, Sagawa M, Katagiri A, Uno Y, Nishioka R, Matsuyama J　J Appl Clin Med Phys.　16　4　202-215　2015
  • 　MTF measurement method for medical displays by using a bar-pattern Image　Journal of Society for Information Display　14　10,831-837　2006　2006/10
  • 　A new resolution enhancement technology using the independent sub-pixel driving for the medical liquid crystal displays　IEEE Journal of Display Technology　4　4　377-382　2008/04
  • 　Examination of the optimal temporal resolution required for computed tomography coronary angiography　Ohashi K, Ichikawa K, Hara M, Kawai T, Kunitomo H, Higashide R, Shibamoto Y　Radiol Phys Technol.　6　2　453-460　2013
  • 　Overall noise characteristics of reduced images on liquid crystal display and advantages of independent subpixel driving technology　Asumi Yamazaki, Katsuhiro Ichikawa, Yoshie Kodera, and Masao Funahashi,　Medical Physiscs　40　2　21901(8 pages)　2013
  • 　Preliminary Study on Sub-Pixel Rendering for Mammography Medical Grade Color Displays, Volume 　Katsuhiro Ichikawa, Hiroko Kawashima　 Breast Imaging Lecture Notes in Computer Science　8539　737-743　2014
  • 　Usefulness of Super High-resolution liquid crystal displays using Independent Sub-pixel Driving Technology　Lecture Notes in Computer Science　5116　84-90　2008/01
  • 　A comparative contrast perception phantom image of brain CT study between high-grade and low-grade liquid crystal displays (LCDs) in electronic medical charts　Yoshimura, Kumiko;Shimamoto, Kazuhiro;Ikeda, Mitsuru;Ichikawa, Katsuhiro;Naganawa, Shinji　PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS　27　2　109-116　2011
  • 　Image quality dependence on in-plane positions and directions for MDCT images　Eur. J. Radiol.　75　1　114-121　2009/01
  • 　Preliminary investigation of the clinical usefulness of super-high-resolution LCDs with 9 and 15 mega-sub-pixels: observation studies with phantoms　Radiol. Phys. Technol.　3　2　70-77　2010/03
  • 　Development of a Noise Reduction Filter Algorithm for Pediatric Body Images in Multidetector CT　Journal of digital imaging　23　6　806-818　2010/06
  • 　Analysis method of noise power spectrum for medical monochrome liquid crystal displays　Radiol. Phys. Technol.　1　2　201-207　2008/01
  • 　A case of adenoid cystic carcinoma of the breast, Journal of Medical Ultrasonics　34　4　193-196　2007/04
  • 　Radiation dose considerations in digital radiography with an anti-scatter grid: a study using adult and pediatric phantoms　Hiroki Kawashima, Katsuhiro Ichikawa, et al.　J Appl Clin Med Phys　24　9　e14081　2023/07/25
  • 　An image-based metal artifact reduction technique utilizing forward projection in computed tomography　Katsuhiro Ichikawa　Radiological Physics and Technology　Online ahead　2024/03/28
  • 　Validating computer applications for calculating spatial resolution and noise property in CT using simulated images with known properties　Takeshi Inoue　Radiological Physics and Technology　17　1　238-247　2024/01/10
  • 　Quality improvement of images with metal artifact reduction using a noise recovery technique in computed tomography　Yusuke Morioka　Physical and Engineering Sciences in Medicine　47　1　169-180　2023/11/08
  • 　Improvement of diagnostic performance of hyperacute ischemic stroke in head CT using an image-based noise reduction technique with non-black-boxed process.　Tetsuya Hirairi　Physica Medica　112　102646　2024/08/07
  • 　Virtual Monochromatic Images of Dual-energy CT as an Alternative to Single-energy CT: Performance Comparison Using a Detectability Index for Different Acquisition Techniques　 Kawashima H, Ichikawa K, et al　European Radiology　Online　2023/03/09
  • 　Task-specific spatial resolution properties of iterative and deep learning-based reconstructions in computed tomography: Comparison using tasks assuming small and large enhanced vessels　 Matsuura K, Ichikawa K, Kawashima H. 　Physica Medica　95　64-72　2022/02
  • 　A tin filter’s dose reduction effect revisited: Using the detectability index in low-dose computed tomography for the chest　Akira Hasegawa, Katsuhiro Ichikawa, et.al.　Physica Medica　99　61-67　2022/05/22
  • 　Comparative Assessment of Noise Properties for Two Deep Learning CT Image Reconstruction Techniques and Filtered Back Projection　 Kawashima H, Ichikawa K, et.al.　Medical Physics　49　10　6359-6367　2022/09/12
  • 　Relationship between Radiation Quality and Image Quality in Digital Chest Radiography: Validation Study Using Human Soft Tissue-equivalent Phantom　 Kawashima H, Ichikawa K, Kunitomo H　Nihon Hoshasen Gijutsu Gakkai Zasshi　77　3　255-262　2021/03
  • 　A new stationary grid, with grid lines aligned to pixel lines with submicron-order precision, to suppress grid artifacts　Kawashima H, Ichikawa K, Iida Y.　Medical Physics　48　9　4935-4943　2021/09
  • 　Reduction of streak artifacts caused by low photon counts utilizing an image-based forward projection in computed tomography　Niwa S, Ichikawa K, Kawashima H, et al.　Comput Biol Med.　135　104583　2021/08
  • 　Performance of clinically available deep learning image reconstruction in computed tomography: a phantom study　Kawashima H, Ichikawa K, Takata T, et al.　Journal of Medical Imaging　7　6　063503　2020/08
  • 　Split-bolus injection protocol with optimized timings of contrast medium injection and CT scanning for 3D CT angio-venography before laparoscopic gastrectomy.　Muroga K, Ichikawa K, et al.　Jpn J Radiol.　39　4　395-403　2021/04
  • 　Determination of contrast medium dose for hepatic CT enhancement with improved body size dependency using a non-linear analysis based on pharmacokinetic principles　Hibino T, Ichikawa K, Fang Y, Ito S, Kawashima H, Bae KT　Clin Radiol.　75　3　238.e11　2020/03
  • 　Image quality comparison of a nonlinear image-based noise reduction technique with a hybrid-type iterative reconstruction for pediatric computed tomography.　Watanabe S, Ichikawa K, et al.　Physica Medica　76　100-108　2020/08
  • 　Effects of energy separation on image quality of virtual monoenergetic image in dual energy CT.　Hiroshi Ueta, Hiroki Kawashima, Katsuhiro Ichikawa, et al.　Japanese Journal of Computed Tomography Technology　8　1　11-15　2020/03
  • 　70kVp CT angiography for preoperative assessment of robot assisted partial nephrectomy: comparison with 120 kVp imaging　Wakiko Tani, Katsuhiro Ichikawa, et al.　Japanese Journal of Computed Tomography Technology　8　1　6-10　2020/03
  • 　Signal-to-noise ratio improvements using anti-scatter grids with different object thicknesses and tube voltages　 Hiroshi Kunitomo, Katsuhiro Ichikawa, et al.　Physica Medica　73　105-110　2020/03
  • 　Transbronchial biopsy of peripheral lung lesions using fluoroscopic guidance combined with an enhanced ray-summation display　Suzuki S, Ichikawa K, et al.　Radiol Phys Technol. 　13　1　52-61　2020/03
  • 　Comparison of physical image qualities and artifact indices for head computed tomography in the axial and helical scan modes. 　Fujimura I, Ichikawa K, et al.　Phys Eng Sci Med .　43　2　557-566　2020/06
  • 　Spatial resolution compensation by adjusting the reconstruction kernels for iterative reconstruction images of computed tomography.　Sugisawa K, Ichikawa K, et al.　Physica Medica　74　47-55　2020/06
  • 　Performance comparison of ultra-high-resolution scan modes of two clinical computed tomography systems.　Kawashima H, Ichikawa K, Takata T, Nagata H, Hoshika M, Akagi N　Med Phys.　47　2　488-497　2020/02
  • 　Determination of contrast medium dose for hepatic CT enhancement with improved body size dependency using a non-linear analysis based on pharmacokinetic principles　Hibino T, Ichikawa K, Fang Y, Ito S, Kawashima H, Bae KT　Clin Radiol.　75　3　238.e11　2020/03
  • 　Algorithm-based artifact reduction in patients with arms-down positioning in computed tomography　Kawashima H, Ichikawa K, Takata T, Mitsui W.　Phys Med.　69　61-69　2020/01
  • 　Accuracy of computed tomography-magnetic resonance imaging image fusion using a phantom for skull base surgery　Hirano T, Ichikawa K, Wanibuchi M, Mikami T, Suzuki J, Nagahama H, Mikuni N　J Neurosurg Sci.　2019/02/22
  • 　Dose Reduction Protocol for Full Spine X-ray Examination Using Copper Filters in Patients With Adolescent Idiopathic Scoliosis　Minehiro K, Demura S, Ichikawa K, Sasagawa T, Takahashi N, Minami S　Spine　44　3　203-210　2019/02
  • 　Quality evaluation of image-based iterative reconstruction for CT: Comparison with hybrid iterative reconstruction.　Kawashima H, Ichikawa K, Matsubara K, Nagata H, Takata T, Kobayashi S.　J Appl Clin Med Phys.　20　6　199-205　2019/05/02
  • 　A three-dimensional cross-directional bilateral filter for edge-preserving noise reduction of low-dose computed tomography images.　Katsuhiro Ichikawa　Comput Biol Med.　111　103353　2019/07/09
  • 　Relationship between size-specific dose estimates and image quality in computed tomography depending on patient size.　Kawashima H, Ichikawa K, Hanaoka S, Matsubara K, Takata T.　Journal of applied clinical medical physics　19　4　246-251　2018/07
  • 　Dose Reduction Protocol for Full Spine X-ray Examination Using Copper Filters in Patients With Adolescent Idiopathic Scoliosis　Minehiro K, Demura S, Ichikawa K, Sasagawa T, Takahashi N, Minami S　Spine　44　3　203-210　2018/07
  • 　Automated determination of cardiac rest period on whole-heart coronary magnetic resonance angiography by extracting high-speed motion of coronary arteries　Asou H, Imada N, Nishiyama Y, Sato T, Ichikawa K　Clinical Imaging　52　183-188　2018/11
  • 　Impact to Z-score Mapping of Hyperacute Stroke Images by Computed Tomography in Adaptive Statistical Iterative Reconstruction　Watanabe S, Sakaguchi K, Hosono M, Ishii K　Nihon Hoshasen Gijutsu Gakkai Zasshi　74　4　375-381　2018/04
  • 　Suggestion of the Relative Artifact Index for Noise-independent Evaluation of the Streak Artifact　Takada K, Ichikawa K, Banno S, Otobe K　Nihon Hoshasen Gijutsu Gakkai Zasshi　74　4　315-381　2018/04
  • 　Automated Classification of Calcification and Stent on Computed Tomography Coronary Angiography Using Deep Learning　長谷川 晃, 李 鎔範, 竹内 悠, 市 川勝弘　Nihon Hoshasen Gijutsu Gakkai Zasshi　74　10　1138-1143　2018/10
  • 　Assessing the Influence of Reconstruction Kernel in Plaque Imaging in Computed Tomography　70　2　135-142　2014
  • 　[Investigation of image quality identification utilizing physical image quality measurement in direct- and indirect-type of flat panel detectors and computed radiography].　Yokoi, Tomohiro; Takata, Tadanori; Ichikawa, Katsuhiro　Nihon Hoshasen Gijutsu Gakkai zasshi　67　11　1415-1425　2011/12/01　
  • 　Calculation Methods for Noise Power Spectrum Measurement in Computed Tomography　Medical Imaging and Information Sciences　25　2　29-34　2008/02
  • 　Method of Measuring Modulation Transfer Function Using Metal Wire in Computed Tomography　Jap. J. Radiol. Technol.　64　6　672-679　2008/06
  • 　Investigation of Practical Method for Quality Assurance and Control of. Medical Displays　Japan Journal of Radiologocal Technology　67　3　235-243　2011/03
  • 　Evaluation of Low Contrast Detectability using Signal-to-noise Ratio in Computed Tomography　Medical Imaging and Information Sciences　24　3　106-111　2007/03
  • 　An MTF measurement method of medical image viewer using a bar pattern　67　2,184-190　2004　2004/02
  • 　Performance Evaluation of Computed Tomography with Equivalent Resolution Images　Japanese Journal of Radiological Technology　62　4,522-528　2006　2006/04

Conference Presentations

  • Performance Evaluation of Iterative Reconstruction Introduced in Photon-counting Detector CT (2023/10/27)
  • Photorealistic virtual endoscopic image for CT colonography (2023/10/27)
  • Super resolution processing for digital radiography using a combination of noise addition and bilateral filter (2023/10/27)
  • Pilot application of an ultra-high resolution CT system to the thoracic region (2023/10/27)
  • High-resolution dental CT with contact geometry utilizing a half-scan technique (2023/10/27)

show all

  • Development of an ultra-high-resolution dental cone-beam CT system (conference：RSNA2023)(2023/11/26)
  • Single-energy low-kV in energy-integrating detector CT versus low-keV virtual monoenergetic images in photon-counting detector CT for iodine imaging(conference：RSNA2023)(2023/11/26)
  • Performance improvement of virtual monochromatic images in dual-source photon-counting CT: Comparison with energy-integrated detector system (2023/04/13)
  • SNR measurement with a textured phantom in dual energy CT: Evaluation of deep learning image reconstruction(2023/04/13)
  • Development of a fast algorithm for photo-realistic volume rendering for CT images (2023/04/13)
  • A new ultra high-resolution CT for extremities with clinical availability (2023/02/11)
  • Principle and effectiveness of Photon-counting CT and a novel ultra-high resolution CT for extremities (2022/07/28)
  • Radiography fundamentals needed for CT technologists (conference：Annual meeting of JSCT)(2022/07/09)
  • Fundamentals of the metal artifact in CT (2022/06/15)
  • A Retrospective Motion Correction In Head Computed Tomography (conference：Annual meeting of JSCT)(2022/07/09)
  • Application of Image-Based Edge-Preserving Noise Reduction in Ultra High Resolution CT for limbs(conference：Annual meeting of JSCT)(2022/07/09)
  • A New Metal Artifact Reduction Technique Using the Bilateral Filter and a Noise Reproduction in Computed Tomography: Investigation Using Clinical Data(conference：Annual meeting of JSRT)(2022/04/14)
  • Noise Properties of a Deep Learning CT Image Reconstruction for Inhomogeneous Backgrounds (conference：Annual meeting of JSRT)(2022/04/14)
  • Differences in Noise Reduction Performance between Two Deep-learning CT image Reconstruction Techniques: A Novel Textured Phantom Approach (conference：RSNA2022)(2022/11/27)
  • Signal-to-noise Ratio Measurement in CT with Conventional and Textured Phantoms: Comparison of Two Deep-learning Image Reconstruction Techniques (conference：RSNA2022)(2022/11/27)
  • A Metal Artifact Reduction Algorithm for Computed Tomography Utilizing a Raw Data Level Noise Recovery Technique(conference：RSNA2022)(2022/11/27)
  • Task-specific spatial resolution measurement using rod objects and a thin wire assuming tasks from thick and thin enhanced vessels in computed tomography(conference：RSNA2021)(2021/11/27)
  • A prototype ultra-high-resolution CT for extremities with 89-µm detector pitch: design and performance(conference：RSNA2021)(2021/11/27)
  • CT image reconstruction seen from projection data and artifacts(conference：Annual meeting of JSRT)(2021/04/17)
  • Is increased dose required for the use of an anti-scatter grid?(conference：RSNA 2020)(2020/11/29)
  • Novel Ultra-high-resolution CT using a CMOS Detector Built on a Conventional Multislice CT Scanner's Detector(conference：RSNA 2019)(2019/12/01)
  • A novel reconstruction algorithm for arm-artifact reduction in computed tomography(conference：SPIE meidcal imaging 2018)(2018/02)
  • System Performance Comparison of Ultra-High-Resolution Scans Using Two Clinically Available MultiDetector CT Systems(conference：RSNA 2018)(2018/12)
  • Image Quality Assessment of Modern Dual Source and Area Detector CT Scanners Using Contrast Dependency Signal-to-Noise Ratio(conference：103th annual meeting of RSNA)(2017/11/28)
  • Examination of Novel Body Size Index to Adjust Contrast Medium Dose for Abdominal Contrast-Enhanced Computed Tomography: Comparison with Body Surface Area and Lean Body Weight(conference：103th annual meeting of RSNA)(2017/11/28)
  • Pre-filtered 3-dimensional bilateral filtering for noise reduction of computer tomography image(conference：JSCT 5th Annual Meeting)(2017/06/24)
  • Arm artifact reduction techniques for computed tomographic images: Has the problem overcome by existing techniques?(conference：Radiological Society of North America)(2017/11/28)

Others

Arts and Fieldwork

Patent

○ U.S. Patent(publish date：2021/01/12)(country：U.S.)(No： U.S. Patent No. 10,891,720)
○Image displaying appratus and image display program(country：Japan)(No：2013-179599)

Theme to the desired joint research

○Image analysis and new technology development for digital radiography
○Image analysis and new technology development for computed tomography

Grant-in-Aid for Scientific Research

○「肺および骨の微細構造を描出する極超高解像度CTの開発」(2021-2024)　
○「肺および骨の微細構造を描出する極超高解像度CTの開発」(2021-2024)　
○「肺および骨の微細構造を描出する極超高解像度CTの開発」(2021-2024)　
○「デュアルエネルギーCTのエネルギー領域に対応した人体組織等価ファントム物質の開発」(2017-2019)　

Competitive research funding,Contribution

Collaborative research,Consignment study

Classes (Bachelors)

○Radiographic Science(2017)
○CT Technology(2017)
○Radiographic Science Experiment(2017)
○Radiographic Science(2017)
○Medical Radiography 1(2017)
○Clinical Training 2(2017)
○Clinical Training 1(2017)
○Medical Radiography 1(2016)
○CT Technology(2016)
○Clinical Training 1(2016)
○Clinical Training 2(2016)
○Radiographic Science Experiment(2016)
○Radiographic Science(2016)

Classes (Graduate Schools)

○Analytics for Functional Imaging: Research(2017)
○Analytics for Functional Imaging: Seminar(2017)
○Analytics for Functional Imaging: Lecture(2017)
○Radiological Imaging Technology: Seminar(2017)
○Radiological Imaging Technology: Lecture(2017)
○Research Design in Medical Radiation Science: Lec.(2017)
○Medical Physics:Lecture(2017)
○Processing & Anal. for Biofunctional Imaging: Res.(2017)
○Radiological Imaging Technology: Lecture(2016)
○Analytics for Functional Imaging: Seminar(2016)
○Analytics for Functional Imaging: Lecture(2016)
○Analytics for Functional Imaging: Research(2016)
○Research Design in Medical Radiation Science: Lec.(2016)
○Radiological Imaging Technology: Seminar(2016)
○Medical Physics:Lecture(2016)
○Processing & Anal. for Biofunctional Imaging: Res.(2016)
○Research Design in Health Science: Lecture(2016)

International Project

○School mini-symposiumInternational conference on Medical PhysicsTailand(20161208-20161212)TailandPanelist

International Students

Lecture themes

Others (Social Activities)

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