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Three-dimensional imaging of multi-slice spiral CT of bronchial artery: study on blood supply of central lung cancer

LI Zhi yong,WU Jian lin,LI Shu,et al.Department of Radiology,the First Affiliated Hospital,Dalian Medical University,Liaoning 116011,P.R.China  
Objective:To evaluate three dimensional imaging of multi slice spiral CT (MSCT) of bronchial artery to provide theoretical and practical basis on blood supply and interventional therapy of central lung cancer.Methods:MSCT angiography was performed in 18 patients with central lung cancer,with real time helical thin slice CT scanning.Three dimensional images of bronchial artery were processed at the console workstation.Spatial anatomical characters of bronchial artery using different rotation of view were observed.Results:Among them,bronchial artery in 6 cases (33.33%) with central lung cancer on three dimensional images could exactly be shown about their origin,route (intrapulmonary segment and mediastinum segment) and diameter of bronchial artery.Rate of demonstration of bronchial artery was higher in pulmonary artery stricture and truncation groups,and its diameter became thicker evidenctly.These findings indicated that the central lung cancer was mainly supplied by bronchial artery.Volume rendering images were the best among these three dimensional images.Conclusion:Three dimensional imaging of MSCT of bronchial artery can reveal the anatomical characters of bronchial artery,provide theoretical evidence on blood supply and interventional therapy of central lung cancer.
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