Imaging study of non-bronchial systemic collateral supply in hemoptysis / 介入放射学杂志

ABSTRACT

Objective To investigate the significance of non-bronchial systemic collaterals (NBSCs) in supplying bronchial hemoptysic lesions,and to study the morphological features of bronchial artery (BA) when NBSCs become the predominant supplying vessels. Methods Multi-slice helical CT angiographic findings in 124 patients with bronchial hemoptysis were retrospectively analyzed. 3D reconstruction of thoracic systemic arteries,including BAs and NBSCs,was performed at the console work station with the help of real-time thin-slice enhanced helical CT scanning. The number of NBSCs and BAs was calculated,and the internal diameter of the arteries and the thickness of pleura in the vicinity of the pulmonary lesion were measured. According to the presence or absence of NBSCs,the patients were divided into NBSCs group and non-NBSCs group. The relevant data was statistically analyzed. Results NBSCs group included 36 cases,the mean internal diameter of BA was (1.850 ? 0.631)mm and the pleura adjacent to the pulmonary lesion was obviously thickened in 22 cases (61%) with a thickness of 2.7-16.0 mm [mean(7.71 ? 4.12) mm]. In the non-NBSCs group (n = 88),the mean internal diameter of BA was (2.200 ? 0.528) mm and the pleura adjacent to the pulmonary lesion was obviously thickened in 7 cases (8%) with a thickness of 1.1-2.4 mm [mean(1.7 ?0.53) mm]. The differences in both internal diameter of BA and the thickness of lesion's adjacent pleura between two groups were statistically significant (P