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. Author manuscript; available in PMC: 2020 Jan 1.
Published in final edited form as: Alzheimers Dement. 2018 Jun 21;15(1):172–178. doi: 10.1016/j.jalz.2018.05.006

Table 1.

Biomarkers included the amyloid, tau, neurodegeneration (A,T,N) classification.

Biomarker Class Cerebrospinal Fluid Marker Imaging Marker
Amyloid (A) CSF Aß42 Amyloid imaging
Tau (T) CSF phospho-tau Tau imaging
Neurodegeneration (N) CSF total-tau MRI; FDG PET

Aß42 – amyloid- beta protein, 42 amino acid length; CSF – cerebrospinal fluid; FDG – fluorodeoxyglucose; MRI – magnetic resonance imaging; PET – positron emission tomography