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Anatomical variations of the carotid‐vertebral arteries: “Double‐vessel” sign on Doppler ultrasonography
Author(s) -
Kantarci Fatih,
Ozbayrak Mustafa,
Gulsen Fatih,
Besirli Kazim,
Mihmanli Ismail
Publication year - 2011
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.20800
Subject(s) - medicine , ultrasonography , sign (mathematics) , radiology , doppler effect , doppler ultrasound , duplex ultrasonography , anatomy , carotid arteries , vertebral artery , cardiology , mathematical analysis , physics , mathematics , astronomy
We describe the “double‐vessel” sign and its relevance for the diagnosis of carotid and vertebral arterial anatomical variations in a series of four patients with stroke. In these four patients, two arteries could be seen at the expected location of the common carotid artery (CCA), leading to the diagnosis of anatomical variations including separate origin of internal and external carotid artery from the aortic arch on the left side and from the brachiocephalic trunk and the subclavian artery on the right side, early bifurcation of the CCA on both sides, and an aberrant course of the vertebral artery on the left side. The presence of two arteries at the expected location of the CCA should raise the suspicion of carotid or vertebral arterial variations. © 2011 Wiley Periodicals, Inc. J Clin Ultrasound, 2011