Slide 1

Approach to Diagnosis

The goal of imaging in a patient with acute stroke are: Exclude hemorrhage Differentiate between irreversibly affected brain tissue and reversibly impaired tissue (dead tissue vs. tissue at risk or the penumbra) Identify stenosis or occlusion of major extra- and intracranial arteries

Approach to DiagnosisCT ScanMRIAngiographyCBCElectrocardiogramOther laboratory parameter

CT ScanCT has the advantage of being available 24 hours a day and is the gold standard for hemorrhage. First tests done in a stroke evaluation, particularly during an acute stroke in the emergency room.Distinguish between ischemic and hemorrhagic strokeNormal CT in patient with