Seishi Doudanuki
Kumamoto University
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Publication
Featured researches published by Seishi Doudanuki.
Computerized Medical Imaging and Graphics | 1988
Yoshiharu Higashida; Nobuyuki Moribe; Yukinori Hirata; Katsuyuki Morita; Seishi Doudanuki; Yoshio Sonoda; Noboru Katsuda; Yasuhiro Hiai; Wataru Misumi; Masanori Matsumoto; Senya Yoshioka; Mutsumasa Takahashi
Threshold contrasts of low-contrast objects with computed radiography (CR) images were compared with those of blue and green emitting screen-film systems by employing the 18-alternative forced choice (18-AFC) procedure. The dependence of the threshold contrast on the incident X-ray exposure and also the object size was studied. The results indicated that the threshold contrasts of CR system were comparable to those of blue and green screen-film systems and decreased with increasing object size, and increased with decreasing incident X-ray exposure. The increase in threshold contrasts was small when the relative incident exposure decreased from 1 to 1/4, and was large when incident exposure was decreased further.
Japanese journal of medical physics : an official journal of Japan Society of Medical Physics | 2000
Yoshinori Funama; Takehiro Uchida; Masamichi Shimamura; Seishi Doudanuki; Takao Takada
Japanese Journal of Radiological Technology | 1997
Masato Maruyama; Yasuhiro Hiai; Yoshinori Funama; Nozomu Nagasue; Ryuuji Ikeda; Seishi Doudanuki; Takao Takada; Mutsumasa Takahashi
Japanese Journal of Radiological Technology | 1997
Yoshinori Funama; Yasuhiro Hiai; Masato Maruyama; Nozomu Nagasue; Ryuhji Ikeda; Seishi Doudanuki; Takao Takada; Mutsumasa Takahashi
Japanese Journal of Radiological Technology | 1996
Yoshinori Funama; Yasuhiro Hiai; Masato Maruyama; Seishi Doudanuki; Katsuyuki Morita; Takao Takada; Takeshi Mori; Kazuhiro Kosaki; Osamu Mahara
Japanese Journal of Radiological Technology | 1996
Yoshinori Funama; Yasuhiro Hiai; Seishi Doudanuki; Katsuyuki Morita; Takuo Takada; Nozomu Nagasue; Ryuji Ikeda
Japanese Journal of Radiological Technology | 1993
Masahiro Hatemura; Yasuhiro Hiai; Noboru Katsuda; Nobuyuki Moribe; Seishi Doudanuki; Takao Takada; Yoshiharu Higashida; Akira Yoshida
Japanese Journal of Radiological Technology | 1991
Noboru Katsuda; Masahiro Hatemura; Nobuyuki Moribe; Katsuyuki Morita; Seishi Doudanuki; Takao Takada; Yoshiharu Higashida
Japanese Journal of Radiological Technology | 1990
Nobuyuki Moribe; Katsuyuki Morita; Seishi Doudanuki; Yukinori Hirata; Takao Takada; Mutsumasa Takahashi; Yoshiharu Higashida
Japanese Journal of Radiological Technology | 1989
Seishi Doudanuki; Yoshiharu Higashida; Noboru Katsuda; Yasuhiro Hiai; Masanori Matsumoto; Mutsumasa Takahashi
