Method, image processing device and computed tomography system for determining a proportion of necrotic tissue, as well as a computer program product with program sections for determining a proportion of necrotic tissue.

摘要

Method, image processing device and computed tomography system for determining a proportion of necrotic tissue, as well as a computer program product with program sections for determining 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 imaging data set (46). ), comprising a tissue area (16) of the subject under examination (12), and a low energy imaging data set (48), comprising a tissue area of the subject sib examination (12), which were 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 from the high energy image data set (46) and the low energy image data set (48), and a segmentation image data set (22) is created by the tissue area (16) being segmented (if). The segmentation result is transferred (eu) to the virtual contrast medium image (20) for tissue area segmentation (16) in the virtual contrast medium image (20). Finally, an analysis (an) of pixel values that will be attributed to the 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 performing this method.