支气管动脉MSCT三维成像在肺癌介入治疗中的应用

目的:探讨支气管动脉多层螺旋CT(MSCT)三维成像在肺癌中的表现,评价支气管动脉的起源、走行及分支显示对肺癌介入治疗的价值。方法:26例行肺癌介入治疗的患者术前均行MSCT检查,其中9例行增强检查,行支气管动脉三维重建,使用不同的旋转轴观察支气管动脉的空间解剖细节。结果:9例肺癌支气管动脉三维重建的病例中,8例肺癌的支气管动脉三维图像能够清晰显示出支气管动脉的起源、走行、分支和血管直径等。三维成像中以容积再现(VR)技术显示最佳。结论:肺癌介入治疗术前行支气管动脉MSCT三维成像能准确、直观地显示支气管动脉的解剖特点,有利于降低操作难度和术中并发症的发生率,减少对比剂用量和曝光量,缩短选择性插管的时间。

Application of MSCT 3D Reconstruction of Bronchial Artery in Interventional Therapy for Lung Cancer

Objective:To evaluate the value of MSCT 3D angiography of bronchial artery in interventional therapy of lung cancer.Methods:MSCT angiography of bronchial artery was performed in 9 patients with 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 rotations of view were observed.Results:Among them,bronchial arteries in 8 cases (88%) with lung cancer on three dimensional images could exactly be shown about their origin,cource (intrapulmonary segment and mediastinal segment) and diameter.Rate of demonstration of bronchial artery was higher in pulmonary artery stricture and truncation groups,and its diameter became thicker evidently.Volume rendering images were the best among these 3D images.Conclusion:Three dimensional imaging of MSCT of bronchial artery can reveal its anatomical characters,providing practical evidence on blood supply and interventional therapy of lung cancer.