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：
US13433989
公开号：
US08897530B2
申请日:
2012.03.29
申请国别(地区):
US
年份:
2014
代理人:
摘要：
An image processing device and method are disclosed for determining a proportion of necrotic tissue in a defined tissue area of an object under examination based on a high-energy image dataset and a low-energy image dataset, each recorded by way of x-ray measurements with different x-ray energies after a contrast medium has been applied to the object under examination. In at least one embodiment of the method, a virtual contrast medium image is determined from the high-energy image dataset and the low-energy image dataset and a segmentation image dataset is created, by the area of tissue being segmented. The segmentation result is transferred into the virtual contrast medium image for segmenting the tissue area in the virtual contrast medium image. Finally an analysis of values of the pixels lying in the segmented area is undertaken for identifying pixels which are to be assigned to necrotic tissue.
