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Fig. 4 | Alzheimer's Research & Therapy

Fig. 4

From: Elecsys CSF biomarker immunoassays demonstrate concordance with amyloid-PET imaging

Fig. 4

CSF biomarker relationships for a tTau versus Aβ42 and b pTau versus Aβ42. Diagonal lines represent the split between the two clusters. Horizontal and vertical lines represent the cut-offs. Red symbols represent Aβ-PET+; blue symbols represent Aβ-PET–; circles represent cognitively normal participants; triangles represent participants with MCI; squares represent participants with AD. Abbreviations: , β-amyloid; Aβ42, β-amyloid (1–42); AD, Alzheimer’s disease; CSF, cerebrospinal fluid; MCI, mild cognitive impairment; PET, positron emission tomography; pTau, phosphorylated tau (181P); tTau, total tau

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