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Proceedings Paper

Development of a high-definition real-time digital radiography system using a 4-million-pixel CCD camera
Author(s): Fumitaka Takahashi; Ken Ishikawa; Tadashi Taniguchi; Kiyoshi Koike; Hiroshi Kato; Kouji Sekimoto; Tsutomu Ishikawa; Kyosuke Ushio
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Paper Abstract

In order to improve image quality of a high definition real- time I.I-DR system, we have developed an evaluation system using a 4M-CCD camera modifying a conventional system using a pick-up tube camera. An analysis of the conventional system shows that the image quality of total system is expected to be improved by changing camera. Basing on the analysis, we select a FFT type 4M-CCD camera for our purpose. From comparative evaluations of the 4M-CD DR system and the conventional system, the following results are obtained: (1) the image quality of high definition real-time DR is effectively improved by changing a conventional pick- up tube camera to a 4M-CCD camera; (2) the image quality of improved system is almost equal to that of S-F system, in case that the FOV of I.I is in 9 inch mode, which is most usual in GI-tract examination.

Paper Details

Date Published: 2 May 1997
PDF: 12 pages
Proc. SPIE 3032, Medical Imaging 1997: Physics of Medical Imaging, (2 May 1997);
Show Author Affiliations
Fumitaka Takahashi, Hitachi Medical Corp. (Japan)
Ken Ishikawa, Hitachi Medical Corp. (Japan)
Tadashi Taniguchi, Hitachi Medical Corp. (Japan)
Kiyoshi Koike, Hitachi Medical Corp. (Japan)
Hiroshi Kato, National Cancer Hospital (Japan)
Kouji Sekimoto, National Cancer Hospital (Japan)
Tsutomu Ishikawa, National Cancer Hospital (Japan)
Kyosuke Ushio, National Cancer Hospital (Japan)

Published in SPIE Proceedings Vol. 3032:
Medical Imaging 1997: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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