Figure 2. Amyloid-related imaging abnormalities with hemorrhage manifests in magnetic resonance scans as very low-intensity signals detected on gradient echo or susceptibility-weighted imaging magnetic resonance imaging sequences. Amyloid-related imaging abnormalities with edema commonly manifests as hyperintensities on fluid-attenuated inversion recovery or T2-weighted magnetic resonance imaging sequences with no restricted diffusion.

Abbreviations: ARIA-H, amyloid-related imaging abnormalities with hemorrhage; ARIA-E, amyloid-related imaging abnormalities with edema.