Two-dimensional aortographic coronary angiography with synchrotron radiation at aortic regurgitation state

Tohoru Takeda; Keiji Umetani; Toshiki Doi; Yuji Itai; Quanwen Yu; Takao Akatsuka

doi:10.1117/12.368182

6 October 1999 Two-dimensional aortographic coronary angiography with synchrotron radiation at aortic regurgitation state

Tohoru Takeda, Keiji Umetani, Toshiki Doi, Yuji Itai, Quanwen Yu, Takao Akatsuka

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Proceedings Volume 3770, Medical Applications of Penetrating Radiation; (1999) https://doi.org/10.1117/12.368182
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

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Tohoru Takeda, Keiji Umetani, Toshiki Doi, Yuji Itai, Quanwen Yu, and Takao Akatsuka "Two-dimensional aortographic coronary angiography with synchrotron radiation at aortic regurgitation state", Proc. SPIE 3770, Medical Applications of Penetrating Radiation, (6 October 1999); https://doi.org/10.1117/12.368182

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KEYWORDS

Arteries

X-rays

X-ray imaging

Angiography

Imaging systems

Synchrotron radiation

X-ray detectors

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