64层螺旋CT血管造影及三维重建在青年女性肺癌诊断中的价值

The value of 64- row spiral CT angiography and three- dimensional imaging in primary lung cancer in young women

目的:探讨64层螺旋CT血管造影(CT angiography,CTA)及三维重建技术在青年女性肺癌诊断中的价值,旨在提高其诊断准确率。方法:对经病理证实的青年女性肺癌组52例及正常对照组28例行胸部CT增强扫描的病例,采用容积显示(volume rendering,VR)、多平面重建(multi-planar reformat,MPR)及最大密度投影(maximum intensity projection,MIP)后处理技术进行三维重建,分析其影像学表现。结果:青年女性肺癌组52例中49例可以重建出支气管动脉(BA),显示率为94.2%,平均2.5支/人;正常对照组28例中22例可以重建出BA,显示率为78.6%,平均1.3支/人。青年女性肺癌组BA显示率明显高于对照组(P<0.05),青年女性肺癌组重建BA数明显多于正常对照组,青年女性肺癌组同侧BA管径较正常对照组BA明显增粗(P<0.01)。结论:64层螺旋CT血管造影及三维重建是青年女性肺癌的重要检查方法,可以提高其诊断准确率。

Objective：To investigate the ability of 64 -row spiral CT angiography （CTA） and three -dimensional imaging in demonstrating blood supply of primary lung cancer in young women. Methods ：64 - row spiral CT contrast - enhanced scans were performed in 52 primary lung cancer cases in young women and 28 normal control cases. The images reconstructions of VR, MPR and MIP were performed. Results ： 49 primary lung cancer patients in young women and 22 normal control cases were evaluated for at least one bronchial artery （BA） displayed clearly in VR. The detective rate of the BA was 94.2% and 78.6% , the mean number of BA reconstructed on cancer group was more than that in the control group,2.5 vs 1.3 per case respectively. The detective rate of the BA on the side of the lung cancer were better than those of the control group （ P 〈 0.05 ）. The caliber of BA on the side of the lung cancer were larger than those of the control group （P 〈 0.01 ）. Conclusion：64 -row spiral CTA and three -dimensional imaging can show blood supply of primary lung cancer in young women, improve the diagnostic accuracy.