PT - JOURNAL ARTICLE AU - Benameur, K. AU - Bykowski, J.L. AU - Luby, M. AU - Warach, S. AU - Latour, L.L. TI - Higher Prevalence of Cortical Lesions Observed in Patients with Acute Stroke Using High-Resolution Diffusion-Weighted Imaging DP - 2006 Oct 01 TA - American Journal of Neuroradiology PG - 1987--1989 VI - 27 IP - 9 4099 - http://www.ajnr.org/content/27/9/1987.short 4100 - http://www.ajnr.org/content/27/9/1987.full SO - Am. J. Neuroradiol.2006 Oct 01; 27 AB - SUMMARY: Ischemic lesion conspicuity on routine diffusion-weighted imaging (DWI, 30 seconds) was compared with an improved sequence (high-resolution DWI [DWI-HR], 256 seconds) having increased spatial resolution and signal to noise and decreased eddy current artifact in 42 patients with acute ischemic stroke. Total lesion volumes were similar; however, twice as many lesions were identified on DWI-HR, predominately in cortical gray matter. Modest improvements to imaging resulted in increased conspicuity, potentially affecting diagnosis, suspected pathogenic mechanism, and therapeutic decision.