Method and apparatus for vessel characterization

摘要

Techniques for characterizing a narrowing of a vessel are described. A location of a narrowing in a vessel is determined. A first velocity profile on a first surface is determined. The velocity profile corresponds to a fluid moving in the vessel and the first surface is in a region where the fluid motion is substantially laminar. A set of velocity profiles corresponding to the fluid motion are determined. Respective velocity profiles in the set of velocity profiles are determined on respective surfaces downstream of the narrowing and approximately downstream of a region of turbulent flow. A first characteristic of the narrowing is determined in accordance with the first velocity profile and the set of velocity profiles.