Patent ID: 9572495
Date: 2017-02-21
CPC Classifications: A61B,A61F,G06T

Claim:
1. An automated computer-based method of evaluating a blood vessel, the method comprising the steps of: storing intravascular measurements in an electronic memory device, the intravascular measurements comprising distance measurements; generating a set of data from intravascular measurements obtained regarding a segment of length L within the blood vessel using an optical coherence tomography system, the set of data comprising a plurality of cross sectional areas at a plurality of positions along the length L; determining a vascular resistance ratio (VRR) with a resistor-based model or a model based on relative flow resistance using a processor and at least a portion of the set of data; calculating a fractional flow reserve (FFR) from the VRR; determining a characteristic of at least a portion of the segment disposed along the length L in response to the VRR or FFR; and displaying the FFR or VRR.