Figure 1: Compartmental models describing the receptor kinetics of [123I] IACFT in human brain. A 3 compartment model (upper) was used to analyze the striatal time-activity data and a 2 compartment model (lower) was used to fit the occipital cortical data.
	Figure 2: Representative time-activity curves for: striatum (average), occipital cortex, frontal cortex and cerebellum expressed as nCi/ml.
	Figure 3: Trans-axial, sagittal and coronal SPECT images of the brain of a normal subject at 30 to 45 min. after injection of 10 mCi of [123I] IACFT.
	Figure 4: Time dependence of total plasma radioactivity and intact [123I]-IACFT.
	Figure 5: Representative Logan plots for striatum and occipital cortex derived from SPECT data acquired after injection of 10 mCi of [123I] IACFT.
	Figure 6: Plot of (StrTAC - OccTAC) and the corresponding gamma variate fit for one of the subjects.