CALCULATING A FRACTIONAL FLOW RESERVE

摘要

A method for vascular assessment is disclosed. The method, in some embodiments, comprises receiving a plurality of 2-D angiographic images of a portion of a vasculature of a subject, and processing the images to produce a stenotic model over the vasculature, the stenotic model having measurements of the vasculature at one or more locations along vessels of the vasculature. The method, in some embodiments, further comprises obtaining a flow characteristic of the stenotic model, and calculating an index indicative of vascular function, based, at least in part, on the flow characteristic in the stenotic model.

主权项

1. A method for assessing a vascular function of a cardiac vasculature having at least one stenotic segment, the method comprising:
receiving by image processing circuitry a first vascular model modeling the cardiac vasculature; determining at least one characteristic of flow through the stenotic segment in the first vascular model; generating a second vascular model from the first vascular model, with at least one modification to the second vascular model which produces a difference in the characteristic of flow for the second vascular model; further determining the characteristic of flow for the second vascular model corresponding to the characteristic of flow for the first vascular model; and calculating a flow index quantifying the vascular function of the cardiac vasculature modeled by the first vascular model, wherein the calculating is based on comparing the characteristics of flow in said first and said second vascular models.