A method for segmenting of the regions of the white substance, the gray substance and of the cerebrospinal fluid in the images of the human brain, and for calculating the associated volumes

摘要

A method for segmenting of the regions of the white substance, the gray substance and of the cerebrospinal fluid, and for calculating the associated volumes in a protons density image, and a t2 - weighted image, received in an identical axial cross section of the part of the large brain from with the aid of an mr - scanner layers obtained, comprising the steps of:Step 1: calculating the number of pixels, each of which two mutually different components from the totality, in which case the ratio of the two is taken into account, and wherein each pixel (or voxels) this ratio of the two different components in a deterministic manner from the respective values of the two different components themselves, the resulting total value and the functional relationship between these values is determined;Step 2: setting a threshold value on the basis of the number of pixels, which in the above step 1 were calculated, in order to press the two sections in a zone to segmenting, the overlapping of the two components is blurred;Step 3: removal of the region..