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Anatomical variants of the aortic arch using CT angiography
Author(s) -
QuirogaGarza Alejandro,
TapiaNañez Mariana,
GuzmanLopez Santos,
ElizondoOmaña Rodrigo Enrique
Publication year - 2019
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.2019.33.1_supplement.616.1
Subject(s) - aortic arch , trunk , medicine , population , vertebral artery , anatomy , aorta , branching (polymer chemistry) , computed tomography angiography , angiography , common carotid artery , arch , carotid arteries , radiology , cardiology , biology , ecology , materials science , environmental health , composite material , civil engineering , engineering
population. Variants have been widely studied in different populations, with a general prevalence between 5% and 35% however, data in Latino population is limited. The purpose of our study was to determine the prevalence of variants in the ramification of the aortic arch in our population Materials and methods A retrospective, observational, comparative and transversal study was performed. A sample size calculation was made, with a result of 202 individuals. Using computed tomography angiography (CTA), the number of arteries that originated within the limits of the aortic arch was quantified; the branching pattern, the most cranial vertebral level of the aortic arch, luminal diameters of the proximal, middle, and distal segments were recorded. The diameter of each branch originated in the arch of the aorta was also evaluated. Results A total of 220 individuals were sampled, of which 52% (n 114) were men. The mean age was 55 years. The classical branching was present in 77.7%, followed by a common carotid trunk and left subclavian pattern (13.6%), the classic branching adding the left vertebral artery (7.3%), and others (1.5%). Highest vertebral was T3 in 32.3%, between T2–T3 in 26.8%, and between T3–T4 in 23.2%. Mean luminal diameter were 92.10±12.35, 76.75±10.32, and 73.85±12.27mm 2 in the proximal, middle, and distal segments, respectively. Statistical differences were found between men and women in the middle and distal portions. Conclusion Our population showed an anatomical variation of the typical branching pattern of the aortic arch in 22.3% (n 49). The most cranial point of the aortic arch is found between T2 and T4 in 82.3% of the cases. Support or Funding Information None This abstract is from the Experimental Biology 2019 Meeting. There is no full text article associated with this abstract published in The FASEB Journal .