Fluid-dynamic analysis of a vascular tree using angiography

摘要

A method for ascertaining a fluid-dynamic characteristic value of a resilient vascular tree, through which a fluid flows in a pulsating manner, is provided. At least one 2D projection, respectively, of the resilient vascular tree is generated by a projection device from different angles of projection, and a digital 3D reconstruction of the vascular tree is generated by an analysis device based on of the 2D projections. A geometry of at least one vessel of the resilient vascular tree is estimated based on the 3D reconstruction, and at least one fluid state in the resilient vascular tree is ascertained from the geometry and predetermined resilient properties of the resilient vascular tree. The at least one fluid-dynamic characteristic value is calculated as a function of the at least one fluid state.

主权项

1. A method for ascertaining a fluid-dynamic characteristic value of a resilient vascular tree, through which a fluid flows in a pulsating manner, the method comprising:
generating, by a detector of a projection device, at least one two-dimensional (2D) projection, respectively, of the resilient vascular tree from different angles of projection; and generating, by a processor, a digital three-dimensional (3D) reconstruction of the resilient vascular tree based on the 2D projections; estimating, by the processor, a geometry of at least one vessel of the resilient vascular tree based on the digital 3D reconstruction; ascertaining, by the processor, at least one fluid state in the resilient vascular tree from the geometry and predetermined resilient properties of the resilient vascular tree; and calculating, by the processor, the fluid-dynamic characteristic value as a function of the at least one fluid state, wherein the at least one fluid state comprises a fluid volume, a respective fluid pressure at at least two different instants, a respective fluid pressure at two different locations at least in the resilient vascular tree, or any combination thereof.