METHOD, IMAGE PROCESSING DEVICE, COMPUTER PROGRAM AND ELECTRONICALLY READABLE DATA CARRIER FOR REDUCING VESSEL OVERLAP ARTIFACTS IN A FOUR-DIMENSIONAL ANGIOGRAPHY DATA SET
Christopher Rohkohl;Markus Kowarschik;Sonja Gehrisch
发明人:
Markus Kowarschik,Christopher Rohkohl,Sonja Gehrisch
申请号：
US15866962
公开号：
US20180199905A1
申请日:
2018.01.10
申请国别(地区):
US
年份:
2018
代理人:
摘要：
Vessel overlap artifacts are reduced in a four-dimensional angiography data set a blood vessel system of a patient with a contrast medium. A three-dimensional vessel data set of the blood vessel system is reconstructed from two-dimensional projection images of digital subtraction angiography showing the blood vessel system, determined by multiplicative back projection of the projection images into the vessel data set or a base data set of the four-dimensional angiography data set derived vessel data set. A plausibility check is performed with vessel sections displayed as filled with contrast medium in partial image data sets of the angiography data set assigned to all individual, and different instants of the covered period are checked against a plausibility check criterion checking for a contrast medium-filled connection to an admissible source point, after which a corrected partial image data set is determined containing only vessel sections satisfying the plausibility check criterion.
