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ABSTRACT
| Radiographic assessment of Carinal Angle on an Apparently Normal (PA) Posteroanterior Chest Radiographs amongst Adult Patients at Usmanu Danfodiyo University Teaching Hospital, Sokoto: Northwest Nigeria |
| Mohammed Dahiru*¹, Isah D. Ibrahim¹, Farug K. Umar², Mohammed Abacha¹, Umar Abubakar¹, Audu A. Sadiq¹, Iliyasu I. Yusuf¹ |
| Background: The carina angle (CA) is formed by the convergence of the axes of the right and left main bronchi, visible in a well-exposed chest radiograph (CXR) at the level of the fifth thoracic vertebra. An elevation in the carina angle is linked to pathologies affecting the trachea, bronchi, lungs, and mediastinum. Objectives: This study aimed at assessing mean value and variability range of the tracheal bifurcation angle based on patient gender, age, body height, and the maximum transverse diameter of the chest under normal conditions, specifically focusing on individual sex and body height concerning the carinal angle. Material and Methods: A cross-sectional study was conducted over six months, from April to September 2021, involving participants drawn from patients referred to the radiology department for chest X-ray examinations. The carinal angle was measured on the normal posteroanterior (PA) chest X-rays of 90 adult patients, comprising 37 (41.1%) males and 53 (58.9%) females. Results: The tracheal bifurcation angle exhibited a mean value of 58.31° ± 10.57°. The average carinal angle for males and females was 54.95° ± 9.20 and 54.95° ± 9.20°, respectively. A statistically significant difference in CA values between genders was observed (p= 0.01), and a poor relationship was noted between CA and patient height (r = 0.21). Similarly, a weak relationship was observed between CA and age ®= 0.21). Conclusion: Our findings indicate that the average carinal angle in normal patients is associated with gender while being independent of age and height. Knowledge of the normal range of carinal angle values can assist clinicians and surgeons in making an objective and reproducible diagnosis of pathological changes related to this angle. |
| 10.51658/ABMS.202331.11 |
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