Related Experiment Video

Updated: Jan 15, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
09:32

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging

Published on: December 9, 2021

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Evaluation of aortic arch branching pattern variations with computed tomography angiography images

Ayse Yigit1, Tuncay Veysel Peker2, Ismail Nadir Gulekon2

  • 1Department of Anatomy, Faculty of Medicine, Hitit University, Çorum, Turkey.

Surgical and Radiologic Anatomy : SRA
|January 13, 2026
PubMed

Insights

Aortic arch branching variations are common in the Turkish population, with no significant sex difference. Awareness of these anatomical variations is crucial for reducing risks during thoracic surgery and interventional procedures.

Area of Science:

  • Anatomy
  • Radiology
  • Vascular Biology

Background:

  • Aortic arch branching patterns exhibit significant diversity.
  • These variations are frequently discovered incidentally during computed tomography angiography (CTA).
  • Understanding prevalence is key for clinical practice.

Purpose of the Study:

  • To determine the prevalence of aortic arch branching pattern variations in the Turkish population.
  • To analyze variations using computed tomography angiography (CTA) data.
  • To assess potential sex-based differences in these variations.

Main Methods:

  • Retrospective analysis of 1000 CTA scans (500 males, 500 females).
  • Classification of aortic arch branching variations into seven types.
  • Statistical analysis (Chi-square test) to evaluate sex-based differences.

Main Results:

  • A normal branching pattern (Type 1) was observed in 85.3% of cases.
  • The most frequent variations included Type 2 (8.3%) and Type 3 (4.1%).
  • Other variations (Type 4, 6, 7) were less common, with Type 5 absent. One case of left inferior thyroid artery variation noted.

Conclusions:

  • No statistically significant sex difference in aortic arch branching variations was found (p=0.067).
  • Aortic arch variations increase risks of bleeding and ischemia during thoracic surgery.
  • Knowledge of these variations is vital for patient safety in thoracic surgery and interventional radiology.
Abstract

Keywords:
Aortic archBranching patternComputed tomography angiographyVariation

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