|The current concepts of computed tomography for acute stroke
D. Zlatareva, J. Petrova, N. Traykova, V. Hadjidekov
Stroke is one of a leading cause of death anddisability worldwide. The major advances in stroke therapy in particular invasive therapy lead to application of new imaging techniques. The aim of this review is to present state-of-theart concepts of computed tomography for acute stroke. The goals of a neuroimaging in acute stroke are to establish a diagnosis as early as possible and to evaluate brain perfusion and intracranial vessels’ patency. State-of-the-art imaging in the era of multidetector computed tomography (CT) with high spatial and temporal resolution consists of multimodal CT imaging. Non enhanced CT is necessary for depiction of hemorrhage or early ischemic signs. CT angiography evaluates intravascular thrombi or significant stenosis, and CT perfusion demonstrates salvageable tissue at risk. By combining different imaging techniques in multimodal approach we can acquire information necessary for therapeutic planning and could select patients for thrombolysis. The imaging protocol should be tailored to the patient regarding to the time of onset, necessity and availability of CT modalities.
Key words: STROKE. COMPUTED TOMOGRAPHY (CT). COMPUTED TOMOGRAPHY ANGIOGRAPHY (CTA). COMPUTED TOMOGRAPHY PERFUSION (CTP)