RESUMO
Objective To determine the change of bronchial artery (BA)caused by COPD and its character on CTA.Methods 43 patients with COPD were collected and divided into 4 groups according to the Global strategy for the diagnosis,management,and prevention of chronic obstructive pulmonary disease (GOLD).10 healthy persons were collected as control group.Data of enhanced chest CT from all cases were collected.In combination with 0.625 mm thin slice reconstruction,MPR,MIP and VR,counted the number of BA (main trunk and branch),analysised characteristic change of BA in patient with COPD.Results Compared with con-trol group,quantity of main trunk of BA was increased in GOLD 2 -4 (P ≤0.05 ),and quantity of branch BA was increased in GOLD 3-4(P ≤0.05).Compared with control group and GOLD 1,morphology of BA was significantly tortuose in GOLD 3-4(P ≤0.05). Conclusion Tortuosity BA could be observed in patient with COPD.Increased quantity of BA is showed on enhenced CT and 3D re-construcion CT image with the exacerbation of the disease.Character change is significant in those serious and very serious COPD patients (GOLD 3-4).Feature of BA with COPD is different with other diseases.