Provided are a method for calculating SIG-BF for a blood vessel site from an MRA image and a system for analyzing the risk of cerebrovascular disease and stroke using same. A method for analyzing the risk of cerebrovascular disease according to an embodiment of the present invention enables the risk of cerebrovascular disease to be predicted by calculating the SIG-BF of a blood vessel from the MRA image. Accordingly, accurate diagnosis and monitoring of cerebral infarction, cerebrovascular disease, cerebral hemorrhage, etc. can be achieved, the mid- to long-term prognosis can be determined and the optimal treatment or treatment method can be selected, and future risks can be predicted.
BLOOD FLOW CALCULATION METHOD USING VASCULAR SIGNAL INTENSITY GRADIENT OF BRAIN MAGNETIC RESONANCE ANGIOGRAPHY AND SYSTEM FOR ANALYZING RISK OF CEREBROVASCULAR DISEASE AND STROKE USING SAME