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The BRAIN SEGMENTS page shows the parcellation result as an overlay to the MR image.
The BRAIN SEGMENTS image represents a label atlas of the found brain structures. Please check the alignment of the structure information with the patient image with the fusion slider. In the case of a mismatch try changing the GM segment definition on the MR SEGMENTS page and/or the number of included subjects and repeat parcellation. Alternatively, the structure definitions can be adjusted manually after the outlining step.
PET to MR Matching
The next step consists of rigidly matching the averaged PET image to the MR image. If the data is already matched, the calculation can be skipped by activating the PET already matched to MR box. If the matching has been performed before and the transformation saved, it can be loaded and applied with the Load transformation button.
Otherwise, PNEURO will apply a rigid matching procedure based on the Normalized Mutual Information criterion with Matching sampling as the main parameter. Optionally, if the result is not satisfactory, the PET and/or the MR image may be smoothed.
Please activate the Match PET to MR action button to start matching.