Patent ID: 9247918
Filing Date: 2016-02-02
CPC Classification: A61B,G16H,G16Z

Claim Text:
1. A computer-implemented method for computing a hemodynamic quantity, the method comprising: acquiring angiography data from a patient at a first physiological state of the patient, the first physiological state being the patient at rest; calculating, by a processor, a first flow in a blood vessel of the patient based on the angiography data, wherein the first flow corresponds to the patient at rest, the first flow comprising rest-state flow; estimating boundary conditions for the patient at rest; calculating, by the processor, a second flow as hyperemic flow in a blood vessel based on scaling the first flow by a flow rate scalar from the first physiological state to a second physiological state, the second physiological state being a hyperemic state of the patient and the flow rate scalar being a hyperemic-to-rest flow rate ratio; computing, by the processor, a fractional flow reserve as the hemodynamic quantity based on the calculated hyperemic flow; and reporting the fractional flow reserve to assess coronary artery disease in the patient.