1. An imaging work station comprising: one or more processors programmed to: receive an image depicting a distribution of a radiotracer in a region of interest; register the image to a common space defined by a template or an MRI image of the region of interest which includes a segmented anatomical feature; and extract a volume representation of the image which depicts the distribution of the radiotracer in the segmented anatomical feature and suppresses the radiotracer outside of the segmented anatomical feature.