| Patent application number | Description | Published |
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| 20090274358 | Method and tomography scanner for normalizing image data with respect to a contrast in the image data produced by a contrast agent - A method and a correspondingly configured tomography scanner are disclosed for normalizing image data with respect to a contrast in the image data produced by a contrast agent, the image data illustrating a tissue structure to be examined and at least part of a blood vessel system of an examination region connected to the tissue structure, which are at least in part permeated by the contrast agent. In an embodiment of the method, image data of the examination region is provided with the aid of the tomography scanner. At least one section of a reference vessel permeated by contrast agent is selected in the image data. The image data is normalized on the basis of image data from the section of the reference vessel such that the contrast in the image data as a result of the contrast agent is almost independent of patient-specific and examination-specific parameters in order to ensure that image data from different times can be compared. | 11-05-2009 |
| 20100040268 | METHOD AND CONTROL DEVICE TO CONTROL A SLICE IMAGE ACQUISITION SYSTEM - In a method and control device to control a slice image acquisition system, a scan protocol is initially selected from a number of scan protocols, and then an automatic control of the slice image acquisition system ( | 02-18-2010 |
| 20100135557 | SELECTION METHOD FOR TWO CONTRAST MEDIA FOR USE IN A DUAL-ENERGY CT EXAMINATION, CONTRAST MEDIA COMBINATION AND GENERATION OF CT IMAGES USING A CONTRAST MEDIA COMBINATION AND DIFFERENT ENERGY SPECTRA - A method is disclosed for selecting two contrast agents to be used in a dual energy CT examination of a patient. In at least one embodiment, the method includes determining the gradient of a connecting line between a first material or a first tissue type and a second material or second tissue type in an HU value diagram of the energy-specific HU values, selecting a first contrast agent with an enhancement gradient which is significantly greater than the determined base gradient, and selecting a second contrast agent, the enhancement of which lies in the significance region of the determined base gradient. A contrast agent combination selected in the fashion is also disclosed in at least one embodiment, as well as the generation of CT images using a contrast agent combination selected in the fashion and using different energy spectra. | 06-03-2010 |
| 20100238171 | METHOD FOR PREPARING CT IMAGE DISPLAYS, AND AN ARITHMETIC LOGIC UNIT FOR CARRYING OUT THIS METHOD - A method is disclosed for preparing CT image displays. In at least one embodiment, the method includes compiling N≧2 CT image data records of an area of a patient on the basis of N different X-ray energy spectra, each pixel or voxel being assigned an N-tuple CT numbers, each CT number of the N-tuple being assigned to the absorption value of one of the N X-ray energy spectra; carrying out material destruction over at least one predetermined subarea of the area of the patient represented in the CT image data records with reference to at least three materials including at least bone mineral, yellow bone marrow and red bone marrow; and outputting and/or displaying at least one CT image data record at least with reference to the predetermined subarea with absorption values relating to one of the N X-ray energy spectra or to a mathematically simulated spectrum from which the bone mineral content is extracted. | 09-23-2010 |
| 20100278411 | CONTRAST INTENSIFICATION OF CT IMAGES BY WAY OF A MULTIBAND FILTER - A method is disclosed for processing an output image of an examination object, with the output image having been reconstructed from measuring data acquired during a relative rotational movement between a radiation source of a computed tomography system and the examination object. An image frequency division of an output image takes place in at least a first and a second image. In at least one embodiment, the first image is changed by way of a first function, with the first function effecting a contrast intensification within the first image, and the changed first image and the second image are merged together. | 11-04-2010 |
