Fingertip Synchrotron Radiation Angiography for Prediction of Diabetic Microangiopathy

Diabetic microangiopathy causes acetylcholine-induced paradoxical vasoconstriction in arterioles (20-200 μm). Because conventional angiographic systems lack sufficient spatial resolution (100-200 μm), they are not useful for prediction of diabetic microangiopathy and for the prevention of lethal cardiovascular diseases.