Preprocedural Vessel Wall Enhancement Predicts Microemboli After Endovascular Aneurysm Treatment

Parent artery plaque enhancement (PAPE) and aneurysm wall enhancement (AWE) on preprocedural vessel wall MRI independently predicted new DWI-positive microembolic events after endovascular treatment of unruptured intracranial aneurysms, with quantitative parent artery enhancemen…

• PAPE was present in 68.6% of patients with microemboli vs 14.0% of those without (p<0.001).
• AWE was present in 63.7% vs 38.6% (p=0.02).

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