Research progress on imaging of ischemic penumbra in acute ischemic stroke

Acute ischemic stroke is one of the most common clinical diseases, with high mortality and disability rate. The presence of ischemic penumbra and its timely and accurate imaging judgment are of great significance for selecting clinical treatment options and time. This article reviews the research progress of ischemic penumbra in patients with acute ischemic stroke in different imaging techniques, in order to provide basis for the application of ischemic penumbra in acute ischemic stroke, and then improve the diagnostic accuracy of acute ischemic stroke.