Blood Flow Measurements in Digital Cardiac Angiography using 3D Coronary Artery Reconstructions

Impaired blood flow, which can result in ischemia and death to tissues of critical organs, is a byproduct of several disease states. Examples of angiographic techniques which study blood flow include those 1. which measure uptake and washout of contrast media, 2. which measure the contrast dilution as an indicator, and 3. transit time measurements which measure the time it takes for the fluid to traverse a known volume. This last technique provides the ability to measure absolute blood flow within individual segments and is the subject of this paper.