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Diffusion-negative stroke: a report of two cases.
|Title||Diffusion-negative stroke: a report of two cases.|
|Publication Type||Journal Article|
|Year of Publication||1999|
|Authors||Wang PY, Barker PB, Wityk RJ, Uluğ AM, van Zijl PC, Beauchamp NJ|
|Journal||AJNR. American journal of neuroradiology|
|Date Published||1999 Nov-Dec|
Diffusion-weighted MR imaging is generally thought to be highly sensitive for the diagnosis of acute stroke. We report two cases of hyperacute stroke with absence of changes on diffusion-weighted images within 4 hours of symptom onset. Follow-up studies, performed 4 days later, showed infarction in regions compatible with the clinical presentation and (in one case) with the initial perfusion deficit. These cases indicate that normal findings on diffusion-weighted images in patients with suspected cerebral ischemia do not rule out impending infarction.
|Alternate Journal||AJNR Am J Neuroradiol|