Radiological Assessment of Extracranial Vertebral Artery Variations: A Computed Tomography Angiography Study-Reference-Cited by-同舟云学术

Radiological Assessment of Extracranial Vertebral Artery Variations: A Computed Tomography Angiography Study

Published:2023-05-09 Issue:10 Volume:13 Page:5822
ISSN:2076-3417
Container-title:Applied Sciences
language:en
Short-container-title:Applied Sciences

Author:

Al Hajri Faiza¹,Al Yahya’ey Bayan²,Sirasanagandla Srinivasa Rao³^ORCID,Mogali Sreenivasulu Reddy⁴,Al-Ajmi Eiman⁵^ORCID

Affiliation:

1. Radiology Residency Program, Oman Medical Specialty Board, Athaiba North, Muscat 132, Oman

2. College of Medicine and Health Sciences, Sultan Qaboos University, Al-Khoudh, Muscat 123, Oman

3. Department of Human and Clinical Anatomy, College of Medicine and Health Sciences, Sultan Qaboos University, Al-Khoudh, Muscat 123, Oman

4. Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Singapore 308232, Singapore

5. Department of Radiology and Molecular Imaging, College of Medicine and Health Sciences, Sultan Qaboos University, Al-Khoudh, Muscat 123, Oman

Abstract

We evaluated the incidence of intraforaminal and extraforaminal variations of the vertebral artery (VA) in the Omani population using computed tomography angiography (CTA). CTA results of 579 consecutive Omani patients (1158 VAs) were reviewed retrospectively for the analysis of unusual entrance transverse foramen (UE-V2), midline migration (MM), persistent first intersegmental artery (PFIA), and paracondylar process (PP) variations of VA. The anomalous origin and VA dominance were also determined. The sex and side differences in the incidence of these variations were analyzed using the Chi-square test. The incidence of UE-V2 was observed in 10.44% (121 out of 1158) of cases. The incidence of UE-V2 at different vertebral levels was observed in the sequence of C5 (71%) > C4 (20.7%) > C7 (7.43%) > C3 (0.8%). The incidence of MM variation was 1.29%. PFIA and PP variations were found in 0.17% and 0.60% of cases, respectively. Left-dominant VA was identified in 44.7% (259 out of 579) of subjects. The incidence of VA variations was not significantly associated with either sex or side. Anomalous VA origin from arch aorta (3.5%) and right common carotid artery (CCA) (0.08%) was identified. The incidence of UE-V2 in Omani subjects is comparatively higher than that reported in other Asian populations. A rare case of VA originating from the right CCA was also identified.

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

Link

https://www.mdpi.com/2076-3417/13/10/5822/pdf

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