K. Ichikawa

发表

[Evaluation of low-contrast detectability in low-dose chest computed tomography].

Yohei Miura, K. Ichikawa, Takanori Hara, 2011, Nihon Hoshasen Gijutsu Gakkai zasshi.

Examination of the optimal temporal resolution required for computed tomography coronary angiography

Y. Shibamoto, K. Ichikawa, Kazuya Ohashi, 2013, Radiological Physics and Technology.

Image quality dependence on in-plane positions and directions for MDCT images.

S. Sanada, K. Ichikawa, Takanori Hara, 2010, European journal of radiology.

Automated determination of cardiac rest period on whole-heart coronary magnetic resonance angiography by extracting high-speed motion of coronary arteries.

K. Ichikawa, H. Asou, N. Imada, 2018, Clinical imaging.

Misoperation of CT automatic tube current modulation systems with inappropriate patient centering: phantom studies.

Katsuhiro Ichikawa, Osamu Matsui, Kosuke Matsubara, 2009, AJR. American journal of roentgenology.

[Data: report from the JSRT sectional committee on medical imaging "recommended references on radiological imaging research"].

Kenji Suzuki, J. Shiraishi, T. Ishida, 2004, Nihon Hoshasen Gijutsu Gakkai zasshi.

[Proposal and verification of presampled MTF measurement by simple analysis using the edge method].

K. Ichikawa, H. Kunitomo, R. Higashide, 2008, Nihon Hoshasen Gijutsu Gakkai zasshi.

[Evaluation of resolving power property to the position and direction of in-plane in CT-scan system].

K. Ichikawa, Takanori Hara, S. Niwa, 2008, Nihon Hoshasen Gijutsu Gakkai zasshi.

Evaluation of Low Contrast Detectability using Signal-to-noise Ratio in Computed Tomography

K. Ichikawa, Takanori Hara, S. Niwa, 2007 .

Transbronchial biopsy of peripheral lung lesions using fluoroscopic guidance combined with an enhanced ray-summation display

K. Ichikawa, A. Suzuki, N. Takeda, 2019, Radiological Physics and Technology.

A new stationary grid, with grid-lines aligned to pixel-lines with submicron-order precision, to suppress grid artifacts.

K. Ichikawa, H. Kawashima, Yasuko Iida, 2021, Medical physics.

Bulk motion-independent analyses of water diffusion changes in the brain during the cardiac cycle

Katsuhiro Ichikawa, Tosiaki Miyati, Harumasa Kasai, 2009, Radiological physics and technology.

Signal-to-noise ratio improvements using anti-scatter grids with different object thicknesses and tube voltages.

K. Ichikawa, H. Kunitomo, 2020, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Optimizing image quality using automatic exposure control based on the signal-difference-to-noise ratio: a phantom study

K. Ichikawa, K. Matsubara, H. Kawashima, 2019, Australasian Physical & Engineering Sciences in Medicine.

Simulation of image lag on real-time target tracking in radiotherapy

S. Mori, S. Minohara, K. Ichikawa, 2010 .

A phantom study investigating the relationship between ground‐glass opacity visibility and physical detectability index in low‐dose chest computed tomography

K. Ichikawa, M. Sagawa, Takeshi Kobayashi, 2015, Journal of applied clinical medical physics.

Radiation doses, noise properties, and in-plane spatial resolutions for CT coronary angiography using different CT scanners: Phantom study

K. Ichikawa, K. Koshida, Masanao Kobayashi, 2015 .

Image quality comparison of a nonlinear image-based noise reduction technique with a hybrid-type iterative reconstruction for pediatric computed tomography.

K. Ishii, K. Ichikawa, H. Kawashima, 2020, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Quality evaluation of image‐based iterative reconstruction for CT: Comparison with hybrid iterative reconstruction

K. Ichikawa, K. Matsubara, Satoshi Kobayashi, 2019, Journal of applied clinical medical physics.

Title Bulk motion-independent analyses of water diffusion changes in the brainduring the cardiac cycle

Y. Shibamoto, T. Miyati, Yuriko Suzuki, 2017 .

Dual-energy CT for the preoperative evaluation of lung function: correlation with 99m Tc-MAA SPECT

K. Ichikawa, M. Okada, Y. Kunihiro, 2011 .

Comparative evaluation of image quality among different detector configurations using area detector computed tomography

Yohei Miura, K. Ichikawa, Takanori Hara, 2018, Radiological Physics and Technology.

A tin filter's dose reduction effect revisited: Using the detectability index in low-dose computed tomography for the chest.

K. Ichikawa, A. Hasegawa, H. Kawashima, 2022, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Determination of contrast medium dose for hepatic CT enhancement with improved body size dependency using a non-linear analysis based on pharmacokinetic principles.

S. Ito, K. Bae, K. Ichikawa, 2020, Clinical radiology.

[Effect of Tube Voltage on Contrast Enhancement and Contrast Medium Dose in Abdominal Contrast-enhanced Computed Tomography].

K. Ichikawa, Koji Muroga, Akira Fukuzawa, 2018, Nihon Hoshasen Gijutsu Gakkai zasshi.

Investigation of image lag and modulation transfer function in fluoroscopy images obtained with a dynamic flat-panel detector

S. Sanada, K. Ichikawa, K. Matsubara, 2013, Radiological Physics and Technology.

Comparison of physical image qualities and artifact indices for head computed tomography in the axial and helical scan modes

Yohei Miura, K. Ichikawa, I. Fujimura, 2020, Physical and Engineering Sciences in Medicine.

A New Contrast Enhancement Protocol for Subtraction Coronary Computed Tomography Requiring a Short Breath-Holding Time.

K. Ichikawa, K. Igarashi, Takayoshi Yamaguchi, 2017, Academic radiology.

A New Resolution Enhancement Technology Using the Independent Sub-Pixel Driving for the Medical Liquid Crystal Displays

M. Hasegawa, K. Ichikawa, N. Kimura, 2008, Journal of Display Technology.

[Relationship between Radiation Quality and Image Quality in Digital Chest Radiography: Validation Study Using Human Soft Tissue-equivalent Phantom].

K. Ichikawa, H. Kunitomo, H. Kawashima, 2021, Nihon Hoshasen Gijutsu Gakkai zasshi.

Optimization of scan timing for aortic computed tomographic angiography using the test bolus injection technique

K. Ichikawa, Takanori Hara, K. Takayama, 2016, Acta radiologica.

[Assessing the influence of reconstruction kernel in plaque imaging in computed tomography].

A. Sugiura, K. Ichikawa, T. Taniguchi, 2014, Nihon Hoshasen Gijutsu Gakkai zasshi.

[Investigation of image quality identification utilizing physical image quality measurement in direct- and indirect-type of flat panel detectors and computed radiography].

K. Ichikawa, T. Takata, Tomohiro Yokoi, 2011, Nihon Hoshasen Gijutsu Gakkai zasshi.

Pleomorphic adenoma of the breast

K. Ichikawa, Y. Mizukami, M. Onoguchi, 2008, Radiation Medicine.

Simulation study to evaluate accuracy of target tracking in external radiotherapy

S. Mori, S. Sanada, S. Minohara, 2010 .

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

K. Ichikawa, K. Koshida, K. Matsubara, 2014, Journal of applied clinical medical physics.

Radiation dose and physical image quality in 128‐section dual‐source computed tomographic coronary angiography: a phantom study

O. Matsui, K. Ichikawa, K. Koshida, 2012, Journal of applied clinical medical physics.

Review of a simple noise simulation technique in digital radiography

Hiroki Kawashima, Katsuhiro Ichikawa, Rie Tanaka, 2012, Radiological Physics and Technology.

Noise simulation system for determining imaging conditions in digital radiography

Hiroki Kawashima, Katsuhiro Ichikawa, Rie Tanaka, 2012, Medical Imaging.

Primary small-cell carcinoma of the breast: a case report

K. Ichikawa, Y. Mizukami, M. Onoguchi, 2008, Journal of Medical Ultrasonics.

Glycogen-rich clear cell carcinoma of the breast: a case report

K. Ichikawa, Y. Mizukami, M. Onoguchi, 2009, Journal of Medical Ultrasonics.

Dose Reduction Protocol for Full Spine X-ray Examination Using Copper Filters in Patients With Adolescent Idiopathic Scoliosis

H. Tsuchiya, H. Murakami, K. Ichikawa, 2019, Spine.

Objective assessment of low-contrast computed tomography images with iterative reconstruction.

Eiji Nishimaru, Yoshihiro Nakaya, Katsuhiro Ichikawa, 2016, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Spatial resolution measurement for iterative reconstruction by use of image-averaging techniques in computed tomography

K. Ichikawa, Takanori Hara, Eiji Nishimaru, 2014, Radiological Physics and Technology.

Kinematic radiography of the hip joint after hip resurfacing arthroplasty

S. Sanada, H. Tsuchiya, K. Ichikawa, 2016, Radiological Physics and Technology.

A three-dimensional cross-directional bilateral filter for edge-preserving noise reduction of low-dose computed tomography images

Hiroki Kawashima, Katsuhiro Ichikawa, Toshiki Adachi, 2019, Comput. Biol. Medicine.

Development of a Noise Reduction Filter Algorithm for Pediatric Body Images in Multidetector CT

Eiji Nishimaru, Masayuki Suzuki, Yuko Nakamura, 2010, Journal of Digital Imaging.

Effective temporal resolution and image quality of volume scanning in 320-row detector CT

M. Endo, K. Ichikawa, Takanori Hara, 2019, Australasian Physical & Engineering Sciences in Medicine.

Temporal resolution measurement of 128-slice dual source and 320-row area detector computed tomography scanners in helical acquisition mode using the impulse method.

K. Ichikawa, Takanori Hara, S. Niwa, 2016, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Assessment of temporal resolution of multi-detector row computed tomography in helical acquisition mode using the impulse method.

K. Ichikawa, Takanori Hara, Kazuya Ohashi, 2015, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Task-specific spatial resolution properties of iterative and deep learning-based reconstructions in computed tomography: Comparison using tasks assuming small and large enhanced vessels.

K. Ichikawa, H. Kawashima, Kanae Matsuura, 2022, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

[Suggestion of the Relative Artifact Index for Noise-independent Evaluation of the Streak Artifact].

K. Ichikawa, Katsuhiko Otobe, K. Takada, 2018, Nihon Hoshasen Gijutsu Gakkai zasshi.

Technical Note: Performance Comparison of Ultra-High-Resolution Scan Modes of Two Clinical Computed Tomography Systems.

K. Ichikawa, H. Kawashima, T. Takata, 2019, Medical physics.

Radiation dose and physical image quality in 128-section dual-source CT coronary angiography: a phantom study

O. Matsui, K. Ichikawa, K. Koshida, 2011 .

A case of adenoid cystic carcinoma of the breast

T. Miyati, K. Ichikawa, Y. Mizukami, 2007, Journal of Medical Ultrasonics.

Relationship between size‐specific dose estimates and image quality in computed tomography depending on patient size

Katsuhiro Ichikawa, Kosuke Matsubara, Tadanori Takata, 2018, Journal of applied clinical medical physics.

Split-bolus injection protocol with optimized timings of contrast medium injection and CT scanning for 3D CT angio-venography before laparoscopic gastrectomy

K. Ichikawa, Atsunori Maruyama, Koji Muroga, 2020, Japanese Journal of Radiology.

Performance of clinically available deep learning image reconstruction in computed tomography: a phantom study

Hiroki Kawashima, Satoshi Kobayashi, Katsuhiro Ichikawa, 2020, Journal of medical imaging.

Spatial resolution compensation by adjusting the reconstruction kernels for iterative reconstruction images of computed tomography.

M. Jinzaki, K. Ichikawa, Kazuya Minamishima, 2020, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

X-ray dose reduction using additional copper filtration for abdominal digital radiography: Evaluation using signal difference-to-noise ratio.

Katsuhiro Ichikawa, Hiroki Kawashima, K. Ichikawa, 2017, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

Radiation dose considerations in digital radiography with an anti‐scatter grid: A study using adult and pediatric phantoms

K. Ichikawa, H. Kawashima, A. Kitao, 2023, Journal of applied clinical medical physics.

[Reconstruction technology for three dimensional CT images].

Katsuhiro Ichikawa, K. Ichikawa, 2012, Nihon Hoshasen Gijutsu Gakkai zasshi.

Basic Technology of 3-dimensional Image Processing in Computed Tomography

Katsuhiro Ichikawa, K. Ichikawa, 2000 .

Algorithm-based artifact reduction in patients with arms-down positioning in computed tomography.

Hiroki Kawashima, Katsuhiro Ichikawa, Wataru Mitsui, 2019, Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics.

[Impact of iterative reconstruction on shape reproducibility of three-dimensional computed tomography].

K. Ichikawa, I. Fujimura, Takashi Hoshino, 2012, Nihon Hoshasen Gijutsu Gakkai zasshi.