Angiography Using Synchrotron Radiation

Abstract

X-ray derived from synchrotron radiation contains very high photon density compared with conventional X-ray. In this reason, angiography using synchrotron radiation X-ray can visualize small vessels around 20 to 200 μm which is called arteriole. In our experiments using rat, small vessels like 50 μm in diameter (coronary artery), 20 μm (pulmonary artery), and 30-50 μm (renal artery) can be visualized. Using this method, coronary microthrombus, coronary microspasm, intratumoral vessel of the lung, glomerular vascular unit can be investigated and may lead to better understanding of these pathological conditions.