Acute Ischemic Stroke: An Imaging Update

stroke. Imaging gathers information of cerebral parenchymal viability and compromised vessels enabling risk-benefi t analysis regarding acute stroke triage and treatment. Multiple recent positive endovascular trials have thrust imaging into the forefront, using noncontrast CT/MRI, CT angiogram/MR angiogram, and CT perfusion/MR perfusion as standard of care imaging for acute stroke workup. The objective of this article is to review relevant multimodality imaging fi ndings in acute ischemic stroke along with current evidence and paradigm shifts for treatment.