Fig. 4From: Potential for imaging the high-affinity state of the 5-HT1B receptor: a comparison of three PET radioligands with differing intrinsic activitya MRI images of a cynomolgus monkey. b PET summation images (45–123 min) obtained after i.v. injection of [11C]3 at baseline. c PET summation images (45–123 min) obtained after displacement with fenfluramine (5.0 mg/kg, i.v.) injected 15 min after [11C]3Back to article page