Advances in Imaging

Imaging in stroke continues to be one of the most dynamicfields of stroke research. Over the past year, researchers have used imaging for acute stroke diagnosis, treatment, and management; to assist in the evaluation of new therapies; to gain insight into neurorecovery, to investigate genetic links; and to better understand animal models of stroke. A full range of imaging technologies are being deployed in the fight against stroke: near-infrared optical, magnetic resonance, positron emission tomography (PET), ultrasound, and x-ray CT are all in active use, aided by both routine and novel tracers and contrast agents. A complete overview of all these advances is not possible in the space allotted here. Hopefully, the sampling of the advances over the past year provided here will convey some of the excitement and activity present in this field. Imaging is often used to first diagnose both ischemic and