1. An acute stroke patient with severe stenosis of the left internal carotid artery.
An acute stroke patient with severe stenosis of the left internal carotid artery. The apparent diffusion coefficient map (A) shows an acute infarction as a low signal intensity (white arrow) together with old infarctions (which appear bright). The SWI data (B) shows prominently hypointense cortical veins reflecting the reduced oxygenation levels in the left anterior cerebral artery territory (arrows). Courtesy of Jonathon Grynspan, McMaster University, Hamilton, Ontario, Canada.
S. Mittal et al. AJNR Am J Neuroradiol 2009;30:
©2009 by American Society of Neuroradiology