Dear All: Adopted from spm_getSPM.m (spm99), I wrote a m-function (wrtTimg.m, attached file) to quickly generate t/z score images without using SPM-GUI for a bunch of (simple) contrasts. (IT IS FOR PET ONLY) It would be great if the spm-experts and/or anybody who is interested can double check to see if there is anything wrong in it. Thanks, Kewei Chen Samaritan PET Center Phoenix AZ