Hi: How can I do a two-sample t-test between a FDG-PET image of a patient and a group of FDG-PET image of controls using FSL ?... Sincerely... Gonzalo Rojas Costa Department of Radiology Santa Maria Clinic Avda. Santa Marķa 0500, Providencia, Santiago, Chile. Tel: 56-2-4613074 Cel: 56-9-97771785 www.csm.cl