Method for evaluating postoperative coronary flow reserve score based on preoperative coronary angiography image and computer equipment

The invention relates to a method and computer equipment for evaluating postoperative coronary flow reserve scores based on preoperative coronary angiography images, and the method comprises the following steps: obtaining blood vessel diameter distribution, reference diameter distribution and preoperative coronary flow reserve score distribution based on the preoperative coronary angiography images; determining an expected implantation position of the stent according to the blood vessel diameter distribution and the reference diameter distribution; a coronary artery is divided into a coronary artery great vessel stent segment, a coronary artery great vessel non-stent segment and a capillary segment, the resistance ratio of the coronary artery great vessel stent segment, the coronary artery great vessel non-stent segment and the capillary segment is R1: R2: R3, and R1 is the decline value of the coronary artery fractional flow reserve of the coronary artery great vessel stent segment; r2 is the drop value of t