Basilar artery fenestration is a rare anatomical variation resulting from the failed fusion of the two vertebral arteries during embryonic life. In order of frequency, it is the second most common location of vascular...Basilar artery fenestration is a rare anatomical variation resulting from the failed fusion of the two vertebral arteries during embryonic life. In order of frequency, it is the second most common location of vascular fenestrations after the anterior communicating artery. Vertebrobasilar junction aneurysms are uncommon but often associated with basilar artery fenestration. We report the case of a fenestrated vertebrobasilar junction saccular aneurysm in a 57-year-old woman. The diagnosis was incidentally made on CT angiography which found the anatomical variant and the aneurysm. The radiological features illustrating this association are detailed here and a brief discussion of its pathogenesis and management was made. Vertebrobasilar junction aneurysms are rare and their presence should suggest an associated basilar fenestration.展开更多
目的探讨高分辨率核磁共振(HR-MRI)在椎-基底动脉夹层动脉瘤(VBDA)诊疗中的作用。方法回顾性分析首都医科大学宣武医院2016年1月至12月收治的使用3.0 T HR-MRI检查时间飞跃法血管成像等序列,并经DSA确诊的VBDA患者62例,根据病史将其分...目的探讨高分辨率核磁共振(HR-MRI)在椎-基底动脉夹层动脉瘤(VBDA)诊疗中的作用。方法回顾性分析首都医科大学宣武医院2016年1月至12月收治的使用3.0 T HR-MRI检查时间飞跃法血管成像等序列,并经DSA确诊的VBDA患者62例,根据病史将其分为无症状组18例和症状组44例,分析其临床特点、影像学特点及与预后的关系。结果 HR-MRI显示,双腔征/内膜瓣在无症状组和症状组中分别占27.8%(5例)和54.5%(24例),壁间血肿在两组中分别占22.2%(4例)和43.2%(19例),瘤壁强化在两组分别占33.3%(6例)和77.3%(34例),以上特征两组比较差异均有统计学意义(均P<0.05)。症状组中18.2%(8例)的患者出现复发,明显高于无症状组的5.6%(1例),两组差异有统计学意义(P<0.05)。结论 HR-MRI能够较好显示VBDA的病变特点。症状性VBDA中瘤壁强化和复发比例均较高,提示HR-MRI可在一定程度上评估瘤壁的稳定性并判断预后。展开更多
文摘Basilar artery fenestration is a rare anatomical variation resulting from the failed fusion of the two vertebral arteries during embryonic life. In order of frequency, it is the second most common location of vascular fenestrations after the anterior communicating artery. Vertebrobasilar junction aneurysms are uncommon but often associated with basilar artery fenestration. We report the case of a fenestrated vertebrobasilar junction saccular aneurysm in a 57-year-old woman. The diagnosis was incidentally made on CT angiography which found the anatomical variant and the aneurysm. The radiological features illustrating this association are detailed here and a brief discussion of its pathogenesis and management was made. Vertebrobasilar junction aneurysms are rare and their presence should suggest an associated basilar fenestration.
文摘目的探讨高分辨率核磁共振(HR-MRI)在椎-基底动脉夹层动脉瘤(VBDA)诊疗中的作用。方法回顾性分析首都医科大学宣武医院2016年1月至12月收治的使用3.0 T HR-MRI检查时间飞跃法血管成像等序列,并经DSA确诊的VBDA患者62例,根据病史将其分为无症状组18例和症状组44例,分析其临床特点、影像学特点及与预后的关系。结果 HR-MRI显示,双腔征/内膜瓣在无症状组和症状组中分别占27.8%(5例)和54.5%(24例),壁间血肿在两组中分别占22.2%(4例)和43.2%(19例),瘤壁强化在两组分别占33.3%(6例)和77.3%(34例),以上特征两组比较差异均有统计学意义(均P<0.05)。症状组中18.2%(8例)的患者出现复发,明显高于无症状组的5.6%(1例),两组差异有统计学意义(P<0.05)。结论 HR-MRI能够较好显示VBDA的病变特点。症状性VBDA中瘤壁强化和复发比例均较高,提示HR-MRI可在一定程度上评估瘤壁的稳定性并判断预后。
