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Accessory cardiac bronchus: 3D CT demonstration in nine cases
B Ghaye1, X Kos, R F Dondelinger
1Department of Medical Imaging, University Hospital Sart Tilman, B-4000 Liège, Belgium.
European Radiology
|February 5, 1999
Summary
Accessory cardiac bronchus (ACB), a rare congenital anomaly, was identified in 0.08% of chest CT scans. This study details nine cases, highlighting its origin and characteristics.
Area of Science:
- Anatomy
- Congenital Anomalies
- Radiology
Background:
- Accessory cardiac bronchus (ACB) is a rare congenital anomaly, typically reported in isolated case studies.
- Understanding its prevalence and anatomical variations is crucial for accurate diagnosis.
Purpose of the Study:
- To report a series of Accessory Cardiac Bronchus (ACB) cases.
- To determine the frequency of ACB in routine chest CT examinations.
- To describe the anatomical features and variations of ACB.
Main Methods:
- Retrospective analysis of 11,159 routine spiral CT chest examinations.
- Identification and documentation of Accessory Cardiac Bronchus (ACB) cases.
- Utilized 3D shaded-surface display (SSD) and virtual endobronchial navigation for diagnosis.
Main Results:
- Nine cases of Accessory Cardiac Bronchus (ACB) were detected, yielding a frequency of 0.08%.
- ACB most commonly originated from the intermediate bronchus (8/9 cases).
- Morphological variations included blind extremities and ventilated lobules; associated pulmonary artery anomalies were noted in one case.
Conclusions:
- Accessory Cardiac Bronchus (ACB) is an uncommon anomaly with specific origins and morphological characteristics.
- Advanced imaging techniques like 3D SSD and virtual navigation aid in ACB diagnosis.
- Further research into ACB is warranted given its rarity and potential clinical implications.