NAKAJIMA REIKO
   Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine
   Position   Assistant Professor
Article types Original article
Language English
Peer review Peer reviewed
Title Variation of the origin of the left common carotid artery diagnosed by CT angiography.
Journal Formal name:Surgical and radiologic anatomy : SRA
Abbreviation:Surg Radiol Anat
ISSN code:12798517/09301038
Domestic / ForeginForegin
Volume, Issue, Page 35(4),pp.339-42
Author and coauthor Uchino Akira, Saito Naoko, Okada Yoshitaka, Kozawa Eito, Nishi Naoko, Mizukoshi Waka, Nakajima Reiko, Takahashi Masahiro, Watanabe Yusuke
Publication date 2013/05
Summary INTRODUCTION:The left common carotid artery (LCCA) is usually a second branch of the aortic arch that arises between the brachiocephalic trunk (BCT) and left subclavian artery; relatively frequently, it also arises from or shares a common origin with the BCT. In patients with LCCA of anomalous origin, transfemoral catheterization into the LCCA is sometimes difficult, and transbrachial or transradial approach may be recommended. We evaluated the prevalence of these variations on computed tomography (CT) angiography.METHODS:We retrospectively reviewed CT angiographic images of 2,357 patients obtained using either of two 64-slice multidetector CT scanners. All patients were Japanese and underwent scanning from the aortic arch to the intracranial region; most had or were suspected of having cerebrovascular diseases.RESULTS:We evaluated CT angiographic images of 2,352 patients after excluding four patients with LCCA occluded at its origin. The LCCA arose from the BCT in 141 patients (6.0 %) and had a common origin with the BCT in 130 patients (5.5 %). We found 11 aberrant right subclavian artery (0.47 %), and four of the 11 patients (36 %) had LCCA of common origin with the right common carotid artery, forming a bicarotid trunk (prevalence: 0.17 %).CONCLUSIONS:The total prevalence of variations of LCCA origin diagnosed by CT angiography was 11.7 %.
DOI 10.1007/s00276-012-1038-4
PMID 23129264