Abstract #0829

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

Chen Cao^1,2, 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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