Table 3 Patients with dementia due to AD stratified according to the A/T/N
A/T/(N) system | Biomarker group | AD biomarker concordance | n |
|---|---|---|---|
A+/T+/N+ (n = 21) | A+ | Concordance between amyloid PET and CSF-Aβ42 | 10 |
Either amyloid PET or CSF-Aβ42 positivity | 3 | ||
Only CSF-Aβ42 available | 8 | ||
N+ | Concordance between FDG PET, CSF-tTau and atrophy (cMRI) | 18 | |
Concordance between atrophy (cMRI) and either FDG-PET or CSF-tTau positivity | 3 | ||
A+/T−/N+ (n = 11) | A+ | Concordance between amyloid PET and CSF-Aβ42 | 5 |
Either amyloid PET or CSF-Aβ42 positivity | 2 | ||
Only CSF-Aβ42 available | 4 | ||
N+ | Concordance between FDG PET, CSF-tTau and atrophy (cMRI) | 6 | |
Concordance between atrophy (cMRI) and either FDG-PET or CSF-tTau positivity | 3 |