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CT angiography of Bronchial Artery and pulmonary artery in PAtients with primary lung cancer
肖湘生 于红 李惠民 刘士远 李成洲
200003上海 第二军医大学长征医院影像科
Xiao Xiangsheng，Yu Hong，Li Huimin，Liu Shiyuan，Li Chengzhou. DePArtment of Imageology，Changzheng hosPital，the Second Military Medical University，Shanghai 200003
Abstract
Objective:To further evaluate the blood suPPly of Primary lung cancer（PLC）using CT angiograPhy of bronchial artery and Pulmonary artery.
Methods:Thin－section enhanced MSCT were Performed on 147 cases Primary lung cancer and 46 cases normal PAtients of control grouP，three –dimensional images of bronchial arteries and Pulmonary arteries were obtained using VR and MPR or MIP at workstation，and their morPhology and relationshiP with the masses were assessed.
Results:136 cases of PLC and 32 cases of control grouP were evaluated for at least one bronchial artery was disPlayed clearly in VR. The detective rate of bronchial arteries was 92.7％ and 69.6％ resPectively. The bronchial arteries calibers and the total axial areas of same side of lung cancer were larger than the control grouP and the other side（P<0.05）. BA of the same side of lung cancer were dilated and tortuous，distributed into the masses，and their branches reticularly anastomosed. All PA were shown clearly，and were normal in 54 cases even crossing the masses，“hold ball” sign in 25 cases，“dead tree branch” in 40 cases，“residual root” sign in 28 cases.
Conclusion:the dilated BA and increased blood flow with BA were found in PAtients with PLC，while Pulmonary arteries PAssed through the masses or were interruPted. By using MSCT angiograPhy of BA and PA，it is further demonstrated that BA is the main suPPly vessel of the Primary lung cancer，and no evidence of PA suPPly is found.
Keywords:Lung cancer；Bronchial artery；Pulmonary artery；CT angiograPhy
长期以来，由于人们对肺癌血供有不同观点，对肺癌介入治疗也有不同途径。因此，进一步研究肺癌血供对规范肺癌介入治疗有重要意义。既往的研究方法主要有离体血管灌注和活体血管造影两种，近年来也有用CT血管造影方法，但报道较少[1～3]。我们利用16层CT快速成像及较强三维后处理功能，以容积显示（VR）原发性肺癌的支气管动脉（BA）和肺动脉（PA）三维影像特征，进一步研究肺癌的血供。 | 
