A form of trans-cortical motor aphasia (TCMA), Supplementary Motor Area aphasia can occur in strokes of the Anterior Cerebral Artery (ACA) on the dominant hemisphere. Read more »
When an area of the brain experiences a sudden loss of blood, the event is called a stroke or cerebrovascular accident. Accompanying this circumstance is a loss of neurologic function. Strokes are... Read more »
The middle cerebral artery is the major supplier of blood to the cerebral cortex. It consists of 4 principal segments, M1-M4. M1 refers to the horizontal course of the artery from its... Read more »
The recent use of intravenous tissue plasminogen activator (TPA) to treat acute stoke has resulted in the introduction of “code strokes” in many emergency rooms, which typically require the coordinated efforts of... Read more »
Acute infarcts lead to cell swelling in a process called cytotoxic edema. Signal in diffusion weighted MRI (DWI) is inversely related to the degree of brownian motion of intraparenchymal water. When an... Read more »
Despite its poor sensitivity for detecting embolic strokes, head CT scan remains the initial imaging modality in the work up of suspected acute stroke. The rationale is to initially rule out hemorrhagic... Read more »