Patent ID: 11896416
Assignee: SUZHOU RAINMED MEDICAL TECHNOLOGY CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 8:
9. The method for calculating coronary artery fractional flow reserve based on myocardial blood flow and CT image according to claim 8, wherein the step S07 further comprises: for different types of bends of the blood vessels, calculating a pressure difference from the inlet to an outlet using a three-dimensional model; in comparison with a calculation of two-dimensional axisymmetric model, establishing a correction coefficient database, which is used to store coefficients for correcting the two-dimensional axisymmetric results through various types of bending;
after obtaining the pressure, obtaining a corrected pressure difference from the inlet to the outlet with reference to the correction coefficients in the database, and then calculating FFR by the corrected pressure difference.