多层螺旋CT血管造影在肺癌介入治疗中的应用价值

目的:探讨多层螺旋CT(MSCT)血管造影在肺癌介入治疗中的临床应用价值。方法:应用多层螺旋CT对45例肺癌介入治疗患者术前行MSCT检查,其中对22例患者的支气管动脉等供血动脉行MSCTA重建,通过VR、MPR、MIP等三维重建技术,从多角度观察肺癌供血动脉的空间解剖细节后,行DSA造影及介入治疗。结果:22例肺癌供血动脉MSCTA重建中,均能清晰显示供血动脉的起源、走行、分支及管径等,重建技术以VR显示最佳。DSA造影显示的肿瘤血管、肿瘤染色及供血动脉的来源分布与MSCTA显示的图像基本一致,符合率达100%。结论:肺癌介入治疗前行供血动脉MSCTA能准确、直观地显示其解剖特点,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,缩短选择性插管时间;有助于提高肺癌介入治疗的过程与疗效。

The application value of multi-slice spiral CT angiography in interventional therapy for lung cancer

Objective:To evaluate the clinical value of multi-slice spiral CT angiography(MSCTA)in interventional therapy for lung cancer.Methods:Interventional therapy was performed in 45 patients with lung cancer.MSCTA of tumor supplying artery was performed in 22 of 45 patients,with helical thin slice CT scanning.Images of MSCT enhanced scanning were processed.Spatial anatomical characters of tumor supplying artery using different rotations of view were observed.DSA and interventional therapy were followed up in 22 patients.Results:All tumor supplying arteries in 22 patients with lung cancer were observed using VR,MPR,MIP,which could exactly be shown about their origin,course and diameter.Among them,some tumor supplying arteries(bronchial arteries) could reach far from the segment bronchi or entered into the lesion.Volume rendering images were the best among these images.DSA had a high consistency with MSCTA in displaying the tumor vascularity,tumor stain,and origin of tumor supplying artery in the patients who received MSCTA and the interventional therapy.Conclusion:The anatomy chatacters of tumor supplying artery in patients with lung cancer could be displayed stereographically and clearly by MSCTA,which can provide practical evidence in interventional therapy,and have the potential to increase the safety and effect in interventional therapy for lung cancer.