Method and apparatus for suppression of labeled material in the preparation of loose ct colonography of -

摘要

Medical imaging apparatus (10), which with a radiation source (14), a detector arrangement (18), an image processor (34), a display (42) and a data memory (38) is provided, wherein the medical imaging apparatus of a computer (36) is controlled, which is configured such that it operates the medical imaging apparatus so that it is a medical images (for example, 302, 402, 502) are generated, wherein the radiation source, the detector arrangement, the image processor, the display and the data memory is used, and wherein in the data memory commands are stored, which are configured so that it instructs the computer to carry out:Identification and segmentation (55) of a plurality of density classes, intensity classes or both in a volumetric medical image of a patient, which is a volume of the large intestine of the patient contains;Classification (56) of the volume of the large intestine of the patient into a number of types on the basis of the identified and segmented density classes, intensity classes or both, using an adaptive threshold value were based method, the threshold values derived from a system resolution used;Subtraction, suppression or maintaining (57) of a marked material (for example, 306, 406) in the image in accordance with the types classifications, in order to provide a resultant image (for example, 304, 404, 504); andVisual display (58) of the resulting image.