ObjectiveTo explore the value of computed tomographic angiography (CTA) in the diagnosis of suspected malignant lesions in the lung. MethodsA retrospective analysis of the clinical data of 101 patients who underwent CTA examination of pulmonary and bronchial arteries in our hospital from May 2016 to October 2017 due to suspected malignant lesions in the lung. According to the pathological diagnosis, the patients were divided into lung cancer group (63 cases) and tuberculosis group (38 cases). The differences of left and right bronchial artery (BA), pulmonary artery (PA) and diameter were compared between the two groups. ResultsThe clear development rate of BA in patients with lung cancer (93.65%) was higher than that in tuberculosis group (52.63%), and the number of branches was higher than that in tuberculosis group, the difference was statistically significant (P＜0.05). The left and right BA diameters and total cross-sectional area of lung cancer patients were higher than those of tuberculosis group. The positive rate of grade 1 and grade 2 PA development was higher than that of tuberculosis group, the difference was statistically significant (P＜0.05). In the lung cancer group, the proportion of direct feeding artery in the left and right lung was higher than that in the tuberculosis group, and the difference was statistically significant (P＜0.05). ConclusionCTA of pulmonary artery and bronchial artery has a high clinical value in the differential diagnosis of patients with suspected malignant lesions in the lung.

无