Fig. 1. Brain perfusion SPECT with ^99mTc-exametazime, axial sections. (A) Intact brain perfusion. (B) Perfusion pattern typical for Alzheimer’s disease (reduced perfusion in the parietal cortex). (C) Perfusion pattern typical for frontotemporal degeneration (reduced perfusion in the frontal cortex). (D) Perfusion pattern typical for Lewy body dementia and similar to Alzheimer’s; reduced perfusion is observed in the occipital cortex (Dierckx et al. [2])

Fig. 2. SPECT with ¹²³I-ioflupan shows distribution of dopamine transporters. The picture shows axial sections at the striatal level. Left: a section obtained from a healthy volunteer. Right: a section obtained from a patient with Parkinson’s disease (Hauser et al. [15])