METHOD,IMAGE PROCESSING DEVICE AND COMPUTED TOMOGRAPHY SYSTEM FOR DETERMINING A PROPORTION OF NECROTIC TISSUE AS WELL AS COMPUTER PROGRAM PRODUCT WITH PROGRAM SECTIONS FOR DETERMINING A PROPORTION OF NECROTIC TISSUE
THOMAS FLOHR,BERNHARD SCHMIDT,MARTIN SEDLMAIR,MARCUS WAGNER
申请号：
IN276/KOL/2012
公开号：
IN2012KO00276A
申请日:
2012.03.13
申请国别(地区):
IN
年份:
2012
代理人:
摘要：
Method, image processing device and computed tomography system for determining a proportion of necrotic tissue as well as computer program product with program code sections for deter- mining a proportion of necrotic tissue The invention relates to a method for determining a proportion of necrotic tissue (14) in a defined tissue area (16) of an object under examination (12) based on a high-energy image dataset (46) comprising an area of tissue (16) of the object under examination (12) and a low-energy image dataset (48) comprising an area of tissue (16) of the object under examination (12), which have been recorded by means of x-ray measurements with different x-ray energies after a contrast medium (KM) has been applied to the object under examination (12). A virtual contrast medium image (20) is determined (ER) from the high energy image dataset (46) and the low-energy image dataset (48) and a segmentation image dataset (22) is created, by the area of tissue (16) being segmented (SE). The segmentation result is transferred (UE) into the virtual contrast medium image (20) for segmenting the tissue area (16) in the virtual contrast medium image (20). Finally an analysis (AN) of values of the pixels lying in the segmented area (34) is undertaken for identifying pixels which are to be assigned to necrotic tissue (14). The invention also relates to a corresponding image processing device and a computed tomography system for determining a proportion of necrotic tissue as well as a computer program product with program code sections for executing such a method.
