Research field (4)：
Communication and network engineering
, Biomaterials
, Medical systems
, Biomedical engineering
Research keywords (4)：
Image Processing
, Medical Image Processing
, 画像工学
, 医用画像工学
Research theme for competitive and other funds (34)：
2022 - 2025 Development of an image reconstruction method for the data driven SPECT system with deep learning
2020 - 2024 Development of objective evaluation method for radiation pneumonitis
2019 - 2022 Development of an innovative SPECT system that enables a kinetic analysis of organs
2016 - 2019 回転型データ収集を不要とする革新的SPECTシステムの開発
2015 - 2017 Development of antiscatter grid for cone-beam computed tomography in radiation therapy
2014 - 2017 Proof of new generation, high-precision dose computational algorithm
2012 - 2015 Development of a pinhole camera system for online dose imaging in the boron neutron capture theraphy
2011 - 2014 形態・機能情報を同時に映像化可能なフォトンカウンティング形X線CTの開発
2010 - 2012 Development of high-precision image-guided irradiation method that enables us to monitor the movement during linac stereotactic radiosurgery
2008 - 2011 半導体検出器によるスタティックデータ収集形高分解能SPECTシステムの開発
2007 - 2009 Diagnostic imaging for dental implant : indication, radiation dose and novel technology
1992 - 1993 Predictive assay for late radiation injury with fibroblast and lymphocyte
1992 - 1993 Quantitative analysis of diffuse liver diseases by B-mode ultrasonography using neural networks
1991 - 1992 Development of Light-X ray Hybrid CT System for Plasma Diagnosis
1989 - 1990 Development of Magnetic Field Imaging System Using CT Technique.
1989 - 1990 Predictive assay for biopsy specimens from cancer patients
1988 - 1988 超音波によるスペックル速度計測
1986 - 1987 A study of the optimum image processing and display methods of digital chest X-ray image.
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Papers (263)：
42.Keisuke Usui, Sae Kamiyama, Akihiro Arita, Koichi Ogawa, Hajime Sakamoto, Yasuaki Sakano,Shinsuke Kyogoku,Hiroyuki Daida. Reducing image artifacts in sparse projection CT using conditional generative adversarial networks. Journal of Medical and Biological Engineering. 2023
Momoka Yamada, Kazumi Murata, and Koichi Ogawa. Deconvolution-based Image Recovery for Dynamic Study With Multi-pinhole SPECT System. Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference. 2023
Soya Yagi, Keisuke Usui, and Koichi Ogawa. Scatter and Beam Hardening Correction of Cone Beam CT with a Convolutional Neural Network. Conf Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference. 2023
Akihiro Arita, Keisuke Usui, Syuhei Shibukawa, Masami Goto, Yasuaki Sakano, Shinsuke Kyogoku, Isao Muro, Hiroyuki Daida and Koichi Ogawa. Reduction of Motion Artifacts in Head Magnetic Resonance Imaging using Conditional Generative Adversarial Networks. Conf Rec on IEEE Nuclear Science Symposium and Medical Imaging Conference. 2023
R. Shimada, K. Murata, K. Ogawa. Improvement of the Spatial Resolution of a Multi-pinhole SPECT System with a Deep Learning Method. Conf. Rec. on IEEE Nuclear Science Symposium and Medical Imaging Conference. 2022
K. Usui, J. Takatsu, K. Ogawa, N. Shikama, K. Sasai. Dosimetric and Radiobiological Evaluation of Delivered Dose Distribution with Intra-Fractional Motion in Prostate Stereotactic Radiation Therapy Treatments Using VMAT and Helical Tomotherapy. International Journal of Radiation Oncology*Biology*Physics. 2018. 102. 3. e559-e559
A proposal on a layered slit collimator for radiographic imaging
(International conference on Medical Physics 2016)
Effect of region extraction and assigned electron density value on the accuracy of dose calculation with MRI-based VMAT planning
(International conference on Medical Physics 2016)
Dental image fusion with a KINECT
(International conference on Medical Physics 2016)
Estimation of an atomic density with a singular value decomposition method using a photon-counting x-ray CT
(IEEE Nuclear Science Symposium and Medical Imaging Conference 2016)
Multi-pinhole SPECT system with a triple head gamma camera
(IEEE Nuclear Science Symposium and Medical Imaging Conference 2016)
World Molecular Imaging Society
, 日本放射線腫瘍学会
, 日本歯科放射線学会
, 日本心臓核医学会
, 日本医学物理学会
, IEEE Signal Processing Society
, 日本核医学会
, 日本医用画像工学会
, 電子情報通信学会
, Society of Nuclear Medicine
, International Forum on Medical Imaging in ASIA
, 日本医学放射線学会
, 日本医学放射線物理学会
, Society of SPIE
, 日本超音波医学会
, 応用物理学会
