We present two cases of hyperacute ischemic stroke that were initially missed by diffusion-weighted imaging; abnormalities in locations corresponding to focal neurologic deficits were discovered by MR angiography and perfusion-weighted imaging. Within hours, follow-up diffusion-weighted scans revealed partial conversion of the hypoperfused regions to complete stroke. These cases illustrate the potential for a nonresolving stroke-in- evolution to go undetected by diffusion-weighted imaging at hyperacute timepoints.
|Original language||English (US)|
|Number of pages||5|
|Journal||American Journal of Neuroradiology|
|Publication status||Published - Nov 30 1999|
ASJC Scopus subject areas
- Radiology Nuclear Medicine and imaging
- Clinical Neurology