Patent application number | Description | Published |
20120099709 | DEVICE AND METHOD TO GENERATE X-RAY RADIATION WITH TWO SPECTRA - In a device, a method and a computer-readable storage medium encoded with programming instructions to generate x-ray radiation to examine a subject with at least two spectra respectively of x-ray radiation of different average photon energies, an x-ray tube is used that has at least two foci that are different from one another, and the device is operated to switch between the foci in order to generate x-ray radiation. A spectrum of x-ray radiation respectively emanates from each focus. A filter is associated with the x-ray tube such that the spectrum of x-ray radiation emanating from one of the foci is not filtered by the filter and the spectrum of x-ray radiation emanating from another of the foci is filtered by the filter, such that the average photon energy of the filtered spectrum of x-ray radiation is higher than the average photon energy of the unfiltered spectrum of x-ray radiation. | 04-26-2012 |
20120250967 | 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 - 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. | 10-04-2012 |
20130034212 | CONTRAST AGENT-ENHANCED IMAGING DURING RADIATION THERAPY - 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. | 02-07-2013 |