Computed Tomography in Stroke Diagnosis, Assessment, and Treatment.

Stroke is the second leading cause of death worldwide, with more than 5.5 million deaths annually. Imaging is required before treating a stroke, and imaging techniques assist in diagnosis and treatment decisions. Computed tomography (CT) is the most common diagnostic tool for suspected stroke because of its affordability, wide availability, and speed of acquiring images. Mobile stroke units bring CT directly to the patient.