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Published on: April 18, 2013
Variants and anomalies of thoracic vasculature on computed tomographic angiography in adults
Netanel S Berko1, Vineet R Jain, Alla Godelman
1Department of Radiology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY 10467, USA.
Insights
Aortic arch branching variants are common in adults, found in 32.4% of patients. Anomalies are rare, but understanding these variations on computed tomographic (CT) angiography aids precise reporting and preprocedure planning.
Area of Science:
- Radiology
- Vascular Anatomy
- Medical Imaging
Background:
- Normal branching patterns of the aortic arch and central veins are crucial for vascular health.
- Variations in these patterns can impact surgical and interventional procedures.
- Computed tomographic (CT) angiography is a key imaging modality for evaluating thoracic vasculature.
Purpose of the Study:
- To determine the prevalence of normal, variant, and anomalous branching patterns of the aortic arch and central veins.
- To assess the clinical significance of these vascular variations.
- To evaluate the accuracy of radiologist reporting for these findings on CT angiography.
Main Methods:
- Retrospective review of 1000 consecutive CT angiograms of the chest.
- Analysis included 658 women and 342 men with a median age of 53 years.
- Evaluation of aortic arch branching and central vein anatomy.
Main Results:
- 65.9% of patients exhibited normal aortic arch branching and venous anatomy.
- Aortic arch branching variants were present in 32.4%; anomalies in 1.5%.
- Venous anomalies occurred in 0.7%; cardiothoracic radiologists reported anomalies more accurately (94% vs. 20%).
Conclusions:
- Variant aortic arch branching patterns are common, while anomalies of central thoracic vasculature are infrequent.
- Familiarity with these CT angiography findings is essential for accurate reporting.
- Understanding these variations improves preprocedure planning and patient care.
Objective:
To determine the prevalence and clinical significance of normal, variant, and anomalous branching patterns of the aortic arch and the central veins on computed tomographic (CT) angiography in adults.
Methods:
We retrospectively reviewed 1000 consecutive CT angiograms of the chest in 658 women and 342 men with a median age of 53 years.
Results:
A total of 65.9% of patients had both normal aortic arch branching patterns and normal venous anatomy. Variants in the aortic arch branching pattern were present in 32.4% and anomalies in 1.5%. Venous anomalies were present in 0.7%. Review of CT reports showed that cardiothoracic radiologists correctly reported the anomaly more frequently than other radiologists (94% vs 20%, P = 0.003).
Conclusions:
Whereas anomalies of the central thoracic vasculature are uncommon, variants in the aortic arch branching pattern are common. An appreciation of the appearance of these entities on CT angiography allows for precise reporting and is useful in preprocedure planning.
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