脑计算机断层扫描中的高密度血管征作为可逆性脑血管收缩综合征的早期指征
Hyperdense Vessel Sign in Brain Computed Tomography as an Early Indication of Reversible Cerebral Vasoconstriction Syndrome.
作者信息
Mitsutake Akihiko, Mano Tatsuo, Kawai Mizuho, Kurokawa Ryo, Ishiura Hiroyuki, Sakuishi Kaori, Mori Harushi, Toda Tatsushi
机构信息
Department of Neurology, Graduate School of Medicine, The University of Tokyo, Japan.
Department of Radiology, Graduate School of Medicine, The University of Tokyo, Japan.
出版信息
Intern Med. 2025 May 1;64(9):1404-1407. doi: 10.2169/internalmedicine.4350-24. Epub 2024 Sep 27.
We herein report a case of reversible cerebral vasoconstriction syndrome (RCVS) with an unusual presentation of hyperdense blood vessels. A 53-year-old woman developed thunderclap headache. Brain computed tomography (CT) showed hyperdensity of the anterior cerebral artery. Brain magnetic resonance imaging revealed cerebral infarctions in the left anterior cerebral artery (ACA) territory and cerebellum. The left ACA presented with a hyperintense vessel sign, although magnetic resonance angiography (MRA) appeared normal. One week later, stenotic changes were confirmed using MRA. The vasoconstriction disappeared on day 20, and the patient was diagnosed with RCVS. CT-defined hyperdense vessel signs can be observed at an early stage of RCVS, leading to ischemic events.
我们在此报告一例可逆性脑血管收缩综合征（RCVS），其呈现出异常的高密度血管表现。一名53岁女性出现霹雳样头痛。脑部计算机断层扫描（CT）显示大脑前动脉高密度。脑部磁共振成像显示左侧大脑前动脉（ACA）供血区及小脑存在脑梗死。尽管磁共振血管造影（MRA）显示正常，但左侧ACA出现了血管高信号征。一周后，MRA证实存在狭窄改变。血管收缩在第20天时消失，该患者被诊断为RCVS。CT定义的高密度血管征可在RCVS早期观察到，从而导致缺血性事件。
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