Prevalence of dual left anterior descending artery variations in CT angiography
Uğur Bozlar1, Mehmet Şahin Uğurel, Sebahattin Sarı
1Department of Radiology, Gülhane Military Medical Academy, Ankara, Turkey. ubozlar@yahoo.com.
Purpose:
We aimed to evaluate the frequency and features of dual left anterior descending artery (LAD) variants using computed tomography (CT) angiography.
Methods:
A total of 1337 consecutive coronary CT angiography examinations performed between April 2010 and December 2013 were retrospectively evaluated for the presence of dual LAD. CT examinations were performed with either 64- or 320-row multidetector CT scanners. All CT angiography images were evaluated for the presence and morphologic features of dual LAD subtypes.
Results:
Fifty-six dual LAD variations (4%) were identified in this study population. Type 1 was the most common type of dual LAD (n=48), while Type 3 (n=3) and Type 4 (n=2) were infrequent and Type 2 was not detected. Additionally, we detected previously unclassified dual LAD variations in three cases.
Conclusion:
Dual LAD may be a relatively more common variant than described in the medical literature, which is mostly based on catheter angiography studies. Coronary CT angiography seems markedly efficacious for detecting and documenting the anatomical details of dual LAD subtypes, as well as showing other associated cardiocoronary anomalies.
More Related Videos
04:40Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
Published on: August 28, 2018
09:32Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
Published on: December 9, 2021
Related Concept Videos
Imaging Studies for Cardiovascular System V: CT
Cardiac Catheterization III: Left Heart Catheterization
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Acute Coronary Syndrome III: Diagnostic Studies
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
