Local FFR estimation and visualization to improve functional stenosis analysis

摘要

A system (IPS) and associated method for coronary flow reserve ratio (FFR) simulation. Simulations of various FFR values of part of the vasculature are based on a composite transfer function integrated from a weighted sum of global action transfer functions he. Each global action transfer function represents a distinct physical action that causes a blood pressure drop. The weight we is obtained from a previous training phase on a sample measurement of blood pressure pi versus blood flow fi associated with each vasculature shape. The simulated range of FFR values is visualized on the graphics display GD as a function of blood pressure and flow rate values within each interval.