TABLE 3.

Expected Imaging Findings in Neurodegenerative Disorders

Disease	Amyloid	Tau	α-synuclein	DAT
AD	Increased	Increased	Normal uptake	Normal uptake
Idiopathic PD	Normal uptake	Normal uptake	Increased	Decreased
Dementia with Lewy bodies	Normal uptake or increased	Normal uptake	Increased	Decreased
Multiple-system atrophy	Normal uptake	Normal uptake or increased	Increased	Decreased
Older healthy volunteer	Normal uptake or increased	Normal uptake	Normal uptake	Normal uptake
Progressive supranuclear palsy	Normal uptake	Increased	Normal uptake	Decreased
Essential tremor	Normal uptake	Normal uptake	Normal uptake	Normal uptake
Drug-induced PD	Normal uptake	Normal uptake	Normal uptake	Normal uptake