Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
Department of Neurology, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.
Clin Imaging. 2020 Jun;62:57-62. doi: 10.1016/j.clinimag.2020.01.012. Epub 2020 Jan 15.
Cerebral artery fenestrations detected incidentally during computed tomographic angiography (CTA) or magnetic resonance angiography (MRA) are reported to be associated with aneurysmal dilatation, which may cause cerebrovascular diseases, arteriovenous malformations, or, rarely, ischemic symptoms.
We retrospectively analyzed CTA and MRA of patients with cerebral artery fenestration examined between January 2014 and December 2017. The location, shape, and other associated vascular diseases were described.
Two hundred eleven cerebral artery fenestrations were found in 208 patients for a detection rate of 1.13% (208/18,360). Basilar artery fenestrations were most common, accounting for 50.2% (106/211). The fenestration was <5 mm in 115 patients (54.5%), 5-10 mm in 63 (29.9%), and ≥10 mm in 33 (15.6%). Forty-one patients had other vascular malformations, including 29 aneurysms. Except for one aneurysm, which was at the site of the fenestration, all other aneurysms were separate from the fenestrations. 26 patients had cerebral infarctions; among them, 11 had cerebral infarctions in the blood supply area of the arterial fenestration.
Cerebral artery fenestration is an uncommon finding at cerebral imaging, but mostly affects the basilar artery. Cerebral artery fenestrations could be associated with cerebrovascular diseases and malformations, but the present study could not evaluate the cause-to-effect relationship.
在计算机断层血管造影（CTA）或磁共振血管造影（MRA）中偶然发现的脑动脉窗被报道与动脉瘤样扩张有关，这可能导致脑血管疾病、动静脉畸形，或罕见的缺血症状。
我们回顾性分析了 2014 年 1 月至 2017 年 12 月期间接受脑动脉窗 CTA 和 MRA 检查的患者。描述了其位置、形状和其他相关血管疾病。
在 208 名患者中发现了 211 个脑动脉窗，检出率为 1.13%（208/18360）。基底动脉窗最常见，占 50.2%（106/211）。窗宽<5mm 的有 115 例（54.5%），5-10mm 的有 63 例（29.9%），≥10mm 的有 33 例（15.6%）。41 例患者存在其他血管畸形，包括 29 例动脉瘤。除了一个动脉瘤位于窗的部位外，所有其他动脉瘤均与窗分离。26 例患者发生脑梗死；其中 11 例梗死发生在动脉窗供血区。
脑动脉窗在脑成像中是一种不常见的发现，但主要影响基底动脉。脑动脉窗可能与脑血管疾病和畸形有关，但本研究无法评估因果关系。
