Siemens Aktiengesellschaft

Marcus Wagner

Thomas Flohr

Bernhard Schmidt

Georg Wittmann

Michael Grasruck

Martin Sedlmair

Raimund Martin

Stefan Gleissmann

A method is disclosed for imaging within the scope of a radiation therapy. In at least one embodiment, the method includes preparing one or more contrast agent-enhanced x-ray image data records; and using the contrast agent-enhanced x-ray image data record during an irradiation planning and/or during an irradiation session.

Contrast agent-enhanced imaging during radiation therapy

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.

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

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Obermichelbach, Germany

Marcus Wagner