ĐẶC ĐIỂM HÌNH ẢNH CẮT LỚP VI TÍNH ĐA DÃY TRONG CHẤN THƯƠNG ĐỘNG MẠCH CHỦ NGỰC

Abstract

Objective: To describe the imaging characteristics on computed tomography (CT) and their correlation with clinical features in thoracic aortic injury (TAI). Patients and Methods: A cross-sectional descriptive study was conducted on 19 patients diagnosed with TAI based on CT findings and treated with either surgery or endovascular intervention at Viet Duc University Hospital from January 2021 to February 2025.Results: The study included 19 TAI patients with a mean age of 43 ± 16 years, predominantly male (89.5%). The most common mechanisms of injury were traffic accidents (68.4%) and falls from height (21%). Most patients were hemodynamically stable upon admission (mean systolic blood pressure: 129.0 ± 24.6 mmHg and Glasgow Coma Scale score ≥ 13 in 73.7%). All patients had grade III TAI with associated injuries (100%). The most frequently affected site was the aortic isthmus (89.5%). The average length of the injured segment was 24.6 ± 8.8 mm. The mean diameter of the pseudoaneurysm was 29.3 ± 6.8 mm, with an average pseudoaneurysm-to-aortic diameter ratio of 1.26 ± 0.16. The mean thickness of the mediastinal hematoma was 7.4 ± 5.3 mm. A positive correlation was observed between the pseudoaneurysm-to-aortic diameter ratio and the thickness of the mediastinal hematoma (r = 0.457, p = 0.049). Clinical parameters such as systolic blood pressure and Glasgow score were not significantly correlated with CT imaging characteristics of the aortic injury. Conclusion: CT imaging provides characteristic features that aid in the diagnosis and assessment of injury severity in thoracic aortic injury.