Y
Yasuyuki Kawaji
Researcher at Osaka University
Publications - 8
Citations - 20
Yasuyuki Kawaji is an academic researcher from Osaka University. The author has contributed to research in topics: Computed radiography & Medicine. The author has an hindex of 2, co-authored 6 publications receiving 20 citations.
Papers
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Journal Article
New CR system with pixel size of 50 microm for digital mammography: physical imaging properties and detection of subtle microcalcifications.
Tadamitsu Ideguchi,Yoshiharu Higashida,Yasuyuki Kawaji,Mitsuo Sasaki,Makoto Zaizen,Rei Shibayama,Yumiko Nakamura,Kimihiko Koyanagi,Hirotaka Ikeda,Masafumi Ohki,Fukai Toyofuku,Toru Muranaka +11 more
TL;DR: The newCR mammography system improved physical imaging properties and detection of simulated microcalcifications over conventional CR mammography over the course of this study.
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Image quality and detection performance of a direct digital radiography system
Tadamitsu Ideguchi,Katsuhiko Matsuda,Kazuhiko Himuro,Rie Kuwahara,Hidetsune Miyazaki,Hiroyuki Hazeyama,Seiji Kumazawa,Yasuyuki Kawaji,Akira Yoshida,Masao Matsumoto,Yoshiharu Higashida +10 more
TL;DR: The physical characteristics of a direct amorphous Selenium (a-Se) digital fluoroscopy and radiography system were investigated and digital contrast-detail curves and IQF are, on average, equal those of the screen-film system.
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Influence of readout process on presampled modulation transfer function in computed radiography system
TL;DR: The aim of this study was to analyze intrinsic system factors of CR systems that could affect the modulation transfer function (MTF), such as afterglow during readout and the anti-alias filter before analog to digital converter.
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Evaluation of factors associated with the effectiveness of radiation protection glasses.
TL;DR: In this article , the effects of lead equivalent and lens area of radiation-protective eyewear on lens exposure control were examined, and the results showed that the reduction in exposure of the lens was significantly influenced by the lead equivalent.
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Dosimetry using a radiochromic film and a mammography phantom.
TL;DR: In this paper , the authors measured dose distributions and depth doses using both radiochromic films and mammographic phantoms, and a three-dimensional intra-mammary dose assessment was conducted.