Back to results
US 6,650,724 B2Granted
Combined 3D angio-volume reconstruction method
AssigneeSiemens Aktiengesellschaft
InventorNorbrrt Strobel
Life of this patent
Estimating the term…
Abstract
In a 3D angio-volume reconstruction method for a three-dimensional subject based on 2D projection exposures, shadowing artifacts are avoided by producing a 3D angio-volume dataset based on 2D mask images and a 3D angio-volume dataset based on 2D fill images, and a vessel tree is isolated in the fill volume dataset by a segmentation and is added to the mask image volume dataset after scaling.
Claims4
A method for 3D angio-volume reconstruction of a three-dimensional subject based on 2D projection exposures, comprising the steps of:
- obtaining a plurality of 2D mask images of a three-dimensional subject with no contrast agent in said subject and producing a 3D angio-volume dataset V1 based on said 2D mask images;
- obtaining a plurality of 2D fill images of said subject, with contrast agent in said subject, and producing a 3D angio-volume dataset V2 based on said 2D fill images, said dataset V2 containing a vessel tree made visible by said contrast agent;
- and
- isolating said vessel tree in said dataset V2 by segmentation, scaling the isolated vessel tree to obtain a scaled isolated vessel tree, and adding said scaled isolated vessel tree to said dataset V1 to produce a 3D angio-volume reconstruction without shadowing artifacts.
1 more element
Dependencies are inferred from the claim text.