ARIA severity gradinga
| Radiographic Severity | |||
|---|---|---|---|
| Mild | Moderate | Severe | |
| ARIA-E(sulcal and/or cortical/subcortical FLAIR hyperintensity) | 1 Location < 5 cm | 1 Location 5–10 cm OR>1 Location each <10 cm | 1 more location > 10 cm |
| ARIA-H (microhemorrhage) | ≤4 | 5–9 | ≥10 |
| ARIA-H (superficial siderosis) | 1 Focal area | 2 Focal areas | >2 Focal areas |
↵a ARIA is graded on the basis of treatment-emergent events. For ARIA-H, this count includes cumulative new microhemorrhages or regions of siderosis compared with the baseline, pretreatment examination.