Certain imaging findings in a patient with an embolic or thrombotic stroke may indicate a poor prognosis.
Vascular findings associated with a poor prognosis:
(1) bilateral occlusion of the vertebral arteries
(2) occlusion of the basilar artery
Hemispheric findings associated with a poor prognosis:
(1) large bihemispheric infarcts
(2) large anterior infarct with both cortical and subcortical involvement
