Cerebrovascular diseases
The most recent articles from:
Cerebrovasc. Dis.
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Cerebrovascular diseases · Jan 2009
Diffusion-weighted imaging showing 'pearls' predicts large-vessel disease as stroke etiology.
The patterns on diffusion-weighted (DWI) MRI may be predictive of stroke etiology. In this retrospective study, we assessed whether DWI bright lesions termed 'pearls' predicted the presence of large-vessel arterial stenosis as the etiology of stroke. ⋯ The presence of either 'string of pearls' or 'scattered pearls' on MRI was associated with an independently determined mechanism of intracranial or extracranial arterial stenosis. In patients with acute stroke distributions consistent with either of these patterns, additional vascular imaging should be considered.