ABSTRACT
Ultrasound offers a clinical tool that can detect embolism in real time (1), particularly
in the form of transcranial Doppler (TCD); it can localize embolic occlusion, detect
recanalization or continuing embolization, and define potential sources or pathways of
embolization (2). Given the great heterogeneity in the pathophysiology of ischemic
stroke, emergent noninvasive neurovascular imaging is essential for timely initiation of
established therapies and development of new treatment strategies to prevent reversal of
brain ischemia.
