Cerebellar Infarct Volume in Basilar Artery Stroke

Inclusion criteria: * patient with a clinical diagnosis of acute stroke in the posterior-circulation within 24 hours from symptom onset * patient with a pertinent clinical deficit following physician evaluation (no NIHSS limit) * acute basilar ischemia assessed on MRI matching clinical symptoms and including DWI; and * ABAO confirmed by intra-arterial arteriography and treated using mechanical thrombectomy. Exclusion criteria: \- Patients were excluded if they were ineligible for an MRI or ineligible for MT for the following reasons: * prestroke modified Rankin Scale (mRS) score of \>2 * life expectancy \<3 months * brainstem ischemia on DWI involving more than 80% of the area in axial view