 |
 |
Dear All, I had no answer to these my simply questions. I 'm working with PET images in order to superimpose normal patient to patients with desease. - Do I need to realign different PET scans from different normal patients (one scan for eash patient)? If yes, in the realignment, the smoothing (FWHM) to be used for PET images is 5 or 7? In the SPM manual it is written 7 but the default value for PET is 5. - When I'm doing the normalisation, in the writing options, I have to use "preserve amount" or "preserve concentrations"? My feeling is for the first one. And about the voxel size, I have to leave the default values (2 2 2)? - it is fine 12 for the FWHM of the smmothing? Many thanks Best regards Ignazio