Patent ID: 8761482

Claim:
Method for the determination of attenuation areas in an organism, comprising the steps of: an animal or human body is captured entirely or partially by means of magnetic resonance tomography so that an MR image data set is obtained; the gray values of the MR image data set are classified in such a way that the gray values are assigned to tissue classes, the voxels classified based on the gray values are compared with the anatomy of the body and reclassified in accordance with the result; wherein, for a head, a first data set is obtained from a tissue classification and a second data set is obtained by separating the cerebral and the extracerebral region, and the extracerebral area of the head is subsequently segmented based on the two data sets, so that each voxel of this area is assigned to one of the cavity areas (classes MASTOID, SINUS1-SINUS4), the bone (class BONE) or to the extracerebral soft tissues (class SOFT).