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Proceedings Paper

Two-dimensional aortographic coronary angiography with synchrotron radiation at aortic regurgitation state
Author(s): Tohoru Takeda; Keiji Umetani; Toshiki Doi; Yuji Itai; Quanwen Yu; Takao Akatsuka
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Paper Abstract

At aortic regurgitation state, 2D synchrotron radiation (SR) coronary arteriography (CAG) with aortographic contrast injection was examined theoretically and animal experiments were performed to confirm its diagnostic ability. This system consisted of a silicon monocrystal, fluorescent plate, avalanche-type pickup tube camera, and image acquisition system. The experiment was performed at synchrotron sources in the Photon Factory of Tsukuba. The x- ray energy was adjusted to just above the iodine K-edge. Theoretical calculation described that the coronary arteries overlapping on left ventricle could not be demonstrated well with a high signal-to-noise ratio by using the aortographic CAG with SR. The canine coronary arteries without overlap over the left ventricle were demonstrated clearly, however, the image quality appear to be reduced. The coronary artery overlapping over left ventricle could not be demonstrated well, however the transient reduction of left ventricular wall motion was revealed by transient stenotic procedure of left anterior descending coronary artery.

Paper Details

Date Published: 6 October 1999
PDF: 8 pages
Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); doi: 10.1117/12.368182
Show Author Affiliations
Tohoru Takeda, Univ. of Tsukuba (Japan)
Keiji Umetani, Hitachi Ltd. (Japan)
Toshiki Doi, Univ. of Tsukuba (Japan)
Yuji Itai, Univ. of Tsukuba (Japan)
Quanwen Yu, Yamagata Univ. (Japan)
Takao Akatsuka, Yamagata Univ. (Japan)


Published in SPIE Proceedings Vol. 3770:
Medical Applications of Penetrating Radiation
H. Bradford Barber; Hans Roehrig, Editor(s)

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