Four-Dimensional Flow Magnetic Resonance Imaging Analysis of Cerebral Aneurysm in the Carotid Rete Mirabile
Four-Dimensional Flow Magnetic Resonance Imaging Analysis of Cerebral Aneurysm in the Carotid Rete Mirabile
复制标题
颈动脉网脑动脉瘤的四维血流磁共振成像分析
DOI：
10.1161/strokeaha.122.040692
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发表时间：
2022
期刊：
影响因子：
8.3
通讯作者：
Nozaki Kazuhiko
中科院分区：
文献类型：
--
作者：
Kawano Hiroto;Yamada Shigeki;Tsuji Atsushi;Tsuji Keiichi;Nozaki Kazuhiko
磁共振成像筛查短暂性震颤，偶然发现一名 62 岁女性颅内动脉瘤和右侧颈内动脉闭塞。数字减影血管造影显示双侧颈内动脉海绵状部血管网络异常，左侧海绵状部有最大直径10毫米的囊状动脉瘤（图1A和1B）；因此，她被诊断出患有颈动脉奇迹网。 1 4 维流磁共振成像2 显示颈动脉网（星号）内有一个动脉瘤，有 2 个来自动脉瘤侧壁的流入，一个来自动脉瘤颈部的子流入和一个流出（图 2A；视频）。观察到主要流入在动脉瘤内形成旋转流（图 2B）。流入沿着动脉瘤壁向上（图2C），而流出在动脉瘤中心向下（图2D）。根据 4 维流磁共振成像的血流动力学，我们对患者进行了保守随访。
Magnetic resonance imaging screening for transient tremor incidentally detected an intracranial aneurysm and right internal carotid artery occlusion in a 62-year-old woman. Digital subtraction angiography revealed an abnormal vascular network in the cavernous portion of bilateral internal carotid arteries with a saccular aneurysm with a 10-mm maximum diameter in the left cavernous portion (Figure 1A and 1B); therefore, she was diagnosed with carotid rete mirabile. 1 The 4 dimensionalflow magnetic resonance imaging2 revealed an aneurysm within the carotid rete mirabile network (asterisk) with 2 inflows from the lateral aneurysmal wall, a sub-inflow from the aneurysmal neck, and one outflow (Figure 2A; Video).The main inflow making a whirl stream inside the aneurysm was observed (Figure 2B). Inflow is upward alongside the aneurysmal wall (Figure 2C), whereas the outflow is downward at the aneurysmal center (Figure 2D). Based on the flow dynamics on 4 dimensional-flow magnetic resonance imaging, our patient was followed conservatively.