Fenestrations accompanied by intracranial aneurysms assessed with magnetic resonance angiography
Fenestrations accompanied by intracranial aneurysms assessed with magnetic resonance angiography
复制标题
磁共振血管造影评估伴有颅内动脉瘤的开窗
DOI：
10.4103/0028-3886.93588
复制
发表时间：
2012-01-01
期刊：
影响因子：
2.7
通讯作者：
Thu, Yue-Qi
中科院分区：
文献类型：
--
作者：
Sun, Zhen-Kui;Li, Mei;Thu, Yue-Qi
背景和目的：本研究的目的是利用磁共振血管造影（MRA）评价颅内动脉瘤开窗术的解剖学变化并调查其患病率。材料和方法：2008年6月至2010年10月，4652例（年龄23-73岁）疑似颅内动脉瘤或其他脑血管疾病的患者接受了MRA检查。MRA采用三维飞行时间技术（3D-TOF）结合容积再现（VR）和最大强度投影重建方法进行。审查了开窗和动脉瘤的存在和位置。当开窗术与动脉瘤同时存在时，我们注意到位置的关系。开窗合并颅内动脉瘤的分类根据解剖关系分为以下三种类型：I型，动脉瘤邻近但不在开窗上; II型，动脉瘤位于开窗上; III型，动脉瘤位于远离开窗的位置。结果：在4652例患者中，409例患者被定义为412个颅内动脉瘤，动脉瘤的患病率为8.8。确定了141例开窗术患者;其中24例患者被证实患有颅内动脉瘤。7例被归类为I型，3例被归类为II型，14例被归类为III型。开孔颅内动脉瘤的患病率为17.0，与无开孔颅内动脉瘤相比，差异有统计学意义（P=0.0064）。结论：通过MRA和VR可视化开窗和颅内动脉瘤之间的解剖关系，其显示的病理足够清晰，可以进行诊断。此外，本研究的结果表明，应提醒医生在MRA检测开孔后发生颅内动脉瘤。
Background and Purpose: The aim of this study was to evaluate the anatomical changes and investigate the prevalence in intracranial aneurysm with fenestrations using magnetic resonance angiography (MRA). Materials and Methods: Between June 2008 and October 2010, 4652 patients (aged 23-73 years) with suspected intracranial aneurysm or other cerebrovascular diseases underwent MRA examination. MRA was performed using a three-dimensional time-of-flight technique (3D-TOF) with volume rendering (VR) and maximum intensity projection reconstruction methods. The presence and location of fenestrations and aneurysms was reviewed. When fenestrations were present in combination with aneurysms, we noted the relationship of the locations. The classification of fenestration accompanied by intracranial aneurysm was divided into three types according to the anatomical relationship as follows: Type I, aneurysm adjacent to but not on a fenestration; Type II, aneurysm located on the fenestration; type III, aneurysm located at a position remote from a fenestration. Results: Among the 4652 patients examined, 409 patients were defined with 412 intracranial aneurysms, and the prevalence of aneurysms was 8.8. One hundred and forty-one patients were identified with fenestrations; 24 of these patients were confirmed with intracranial aneurysms. Seven cases were classified as type I, three as type II and 14 as type III. The prevalence of intracranial aneurysm with fenestrations was 17.0, with significant statistical difference compared with aneurysms unaccompanied with fenestrations (P=0.0064). Conclusion: The anatomical relationship between fenestrations and intracranial aneurysms was visualized by MRA with VR, which displayed pathologies with sufficient clarity to enable diagnosis. Furthermore, the results of this study suggest that physicians should be alerted to the occurrence of intracranial aneurysm following the detection of fenestrations by MRA.