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CT Angiography of Bronchial Artery in patients with Primary Lung Cancer

于红  李惠民  刘士远  肖湘生  李成洲  陶晓峰

第二军医大学长征医院影像科

YU Hong，LI Huimin，LIU Shiyuan，et al.

Department of Imageology，Changzheng Hospital，Second Military Medical University，Shanghai 200003

Abstract

　　Objective：To investigate the imaging characters of the bronchial arteries in primary lung cancer.

　　Methods：Thin－section enhanced MSCT（Aquilion 16）was performed in 164 cases of primary lung cancer，123 confirmed by pathology and 41 confirmed by the synthesized clinical methods. 46 cases without any chest lesion confirmed by CT as normal control group. Three－dimensional images of the bronchial arteries were processed at the workstation. Spatial anatomical characters of the bronchial arteries were observed using VR and MPR or MIP.

　　Results：At least one bronchial artery was displayed clearly on VR in 152 of 164 cases of primary lung cancer and 32 of 46 cases of control group，the detective rate being 92.7％ and 69.6％ respectively. More BA branches in cancer group（25.8％）and the same side of cancer（40％）than the control group（1.7％）and the other side（8.8％）reached far from the segment bronchi or entered into the lesions. The caliber of the bronchial arteries and the total axial areas on the side of the lung cancer were significantly larger than those of the other side and of the control group（P<0.05）.

　　Conclusion：The anatomy chatacters of bronchial arteries of primary lung cancer could be displayed stereo and clearly by CTA. The bronchial arteries were dilated and blood flow was increased in primary lung cancer，and CTA could quantitatively analyze the bronchial artery dilataltion degree and the total blood supply.

　　Keywords：Lung cancer；Bronchial artery；CT angiography