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Imaging Characteristics of Persistent Carotid-Vertebrobasilar Anastomoses Detected by Ultrasound: A Case Series

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机构： [1]Department of Ultrasonography, Beijing Youan Hospital, Capital Medical University, Beijing, China. [2]Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing, China. [3]Center of Vascular Ultrasonography, Beijing Institute of Brain Disorders, Beijing, China. [4]Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China.

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关键词： basilar artery case series hemodynamics persistent artery ultrasonography vertebral artery

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In this case series, we aimed to evaluate the ultrasonic characteristics of 35 patients with persistent carotid-vertebrobasilar anastomoses (PCVBA), a rare variant between the anterior and posterior cerebral circulation. Ultrasound detected seven (30.4%, 7/23) primitive trigeminal arteries (PTA), eight (100%, 8/8) primitive hypoglossal arteries (PHA), and four (100%, 4/4) proatlantal intersegmental arteries (PIA). PHA and PIA can be observed as abnormal branches arising from the internal or external carotid artery, most likely accompanied by hypoplastic vertebral arteries with low velocities and high resistances. Still, the basilar arteries had normal blood flows in stark contrast to the vertebral arteries.© 2025 The Author(s). Journal of Ultrasound in Medicine published by Wiley Periodicals LLC on behalf of American Institute of Ultrasound in Medicine.

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大类 | 3 区医学

小类 | 3 区声学 3 区核医学

最新[2025]版：

大类 | 3 区医学

小类 | 3 区声学 3 区核医学

第一作者：

第一作者机构： [1]Department of Ultrasonography, Beijing Youan Hospital, Capital Medical University, Beijing, China.

通讯作者：

通讯机构： [2]Department of Vascular Ultrasonography, Xuanwu Hospital, Capital Medical University, Beijing, China. [3]Center of Vascular Ultrasonography, Beijing Institute of Brain Disorders, Beijing, China.

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