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Proceedings Paper

Development of angiography system with cone-beam reconstruction using large-area flat-panel detector
Author(s): Katsumi Suzuki; Shigeyuki Ikeda; Ken Ueda; Tadashi Nakamura; Masakazu Okabe; Takayuki Kadomura; Rika Baba; Richard E. Colbeth
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Paper Abstract

A novel angiography system with cone-beam reconstruction using a large-area flat panel detector (FPD), with 40x30cm active area and 2048x1536 matrixes with a 194μm pixel pitch, has been developed. We present results on a basic performance, spatial resolution and contrast detectability obtained on this angiography system with cone-beam function using the FPD, and compare with a conventional angiography system with an image intensifier (I.I.) and charge-coupled device (CCD) camera. We’d achieved a fast acquisition, 15 seconds as for a subtraction mode by rotating a ceiling suspended C-arm at a speed of 40 degrees per second, and ensured a large reconstructed columnar volume, φ250mmx180mm, by using the large-area detector. As a result of the evaluation, the 3D image acquired from the FPD system has a high spatial resolution with no distortion and good contrast detectability.

Paper Details

Date Published: 6 May 2004
PDF: 11 pages
Proc. SPIE 5368, Medical Imaging 2004: Physics of Medical Imaging, (6 May 2004); doi: 10.1117/12.533993
Show Author Affiliations
Katsumi Suzuki, Hitachi Medical Corp. (Japan)
Shigeyuki Ikeda, Hitachi Medical Corp. (Japan)
Ken Ueda, Hitachi Medical Corp. (Japan)
Tadashi Nakamura, Hitachi Medical Corp. (Japan)
Masakazu Okabe, Hitachi Medical Corp. (Japan)
Takayuki Kadomura, Hitachi Medical Corp. (Japan)
Rika Baba, Hitachi Ltd. (Japan)
Richard E. Colbeth, Varian Medical Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 5368:
Medical Imaging 2004: Physics of Medical Imaging
Martin J. Yaffe; Michael J. Flynn, Editor(s)

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