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Abstract #0829

Recanalization of Acute Intracranial Large Vessel Occlusions: Novel Findings from High-Resolution Vessel Wall Imaging

Chen Cao1,2, Jing Lei2, Yan Gong3, Song Jin2, Jinxia Zhu4, Ming Wei5, and Shuang Xia6
1Department of Radiology, First Central Clinical College, Tianjin Medical University, Tianjin, China, 2Department of Radiology, Tianjin Huanhu Hospital, Tianjin, China, 3Department of Radiology, Tianjin Medical University Nankai Hospital, Tianjin, China, 4MR Collaboration, Siemens Healthcare Ltd., Beijing, China, 5Department of Neurosurgery, Tianjin Huanhu Hospital, Tianjin, China, 6Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China

Pre-operative recanalization assessment for acute intracranial large-vessel occlusion (LVO) can help optimize endovascular therapy and shorten procedural times. We prospectively examined 46 patients with acute intracranial LVO who underwent high-resolution magnetic resonance imaging (HRMRI) before endovascular therapy. HRMRI had good agreement with angiographic assessment of the causes of occlusion (κ=0.89, 95% CI, 0.69–1.00) and length of occlusion (concordance correlation coefficient=0.75, 95% CI, 0.59–0.86). Intraluminal enhancement was associated with procedural complexity (r=0.81, P< .001) and procedural times (r=0.64, P< .001). HRMRI before recanalization can help define the vascular status and assist with endovascular therapy of acute intracranial LVOs.

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