highly significantp<0.0005
Univariate analysis of variance with the SBR (minimum over both hemispheres) as dependent variable and region of interest (caudate, putamen), DAT status (normal or reduced according to the written report in the patient’s file) and centre (Berlin, Leipzig, Rostock) as fixed factors revealed highly significant effects of the region of interest and DAT status (both p<0.0005), whereas there was no centre effect, independent of the AC method.