Objectives. The present study is aimed at investigating the frequency and associated factors of asymmetrical prominent veins (APV) in patients with acute ischemic stroke (AIS). Methods. Consecutive patients with AIS admitted to the Comprehensive Stroke Center of Shanghai Fourth People’s Hospital between January 2013 and December 2017 were enrolled. MRI including diffusion-weighted imaging (DWI), perfusion-weighted imaging (PWI), and susceptibility-weighted imaging (SWI) was performed within 12 hours of symptom onset. The volume of asymmetrical prominent veins (APV) was evaluated using the Signal Processing In nuclear magnetic resonance software (SPIN, Detroit, Michigan, USA). Multivariate analysis was used to assess relationships between APV findings and medical history, clinical variables as well as cardio-metabolic indices. Results. Seventy-six patients met the inclusion criteria. The frequency of was 46.05% (35/76). Multivariate analyses showed that proximal artery stenosis or occlusion (≥50%) (, , -7604.88) and history of atrial fibrillation (, , -61.68) were independent factors associated with high APV (≥10 mL). Conclusion. Our findings suggest that the frequency of is high in patients with AIS within 12 hours of symptom onset. History of atrial fibrillation and severe proximal artery stenosis or occlusion are strong predictors of high APV as calculated by SPIN on the SWI map.

中文翻译：

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不对称突出静脉的频率和相关因素：急性缺血性卒中患者预后不良的预测因素

目标。本研究旨在调查急性缺血性卒中 (AIS) 患者中不对称突出静脉 (APV) 的频率和相关因素。方法. 入组2013年1月至2017年12月上海市第四人民医院脑卒中综合中心连续收治的AIS患者。MRI 包括弥散加权成像 (DWI)、灌注加权成像 (PWI) 和磁敏感加权成像 (SWI) 在症状出现后 12 小时内进行。使用核磁共振信号处理软件 (SPIN, Detroit, Michigan, USA) 评估不对称突出静脉 (APV) 的体积。多变量分析用于评估 APV 发现与病史、临床变量以及心脏代谢指标之间的关系。结果。76 名患者符合纳入标准。的频率为 46.05% (35/76)。多变量分析显示近端动脉狭窄或闭塞（≥50%）（, , - 7604.88）和房颤病史（, , - 61.68) 是与高 APV (≥10 mL) 相关的独立因素。结论。我们的研究结果表明，在症状出现后 12 小时内的 AIS 患者中发病率较高。根据 SWI 图上的 SPIN 计算，心房颤动和严重近端动脉狭窄或闭塞病史是高 APV 的强预测因子。