CT引导下经皮穿刺活检是有较长历史的一种诊断方法,1976年,H aaga等首次报道CT引导下经皮穿刺活检,这比其他导向更具方便准确的优点[1],从此开创CT引导下介入技术。目前普通CT引导下经皮肺穿刺活检在肺部肿块的早期诊断上发挥了重要作用,临床价值得到充分的肯定[2,3]。多层螺旋 CT-guided percutaneous biopsy is a long history of a diagnostic method, Hagaag et al., 1976, for the first time reported CT-guided percutaneous biopsy, which is more convenient and accurate than other guidelines [1], from which to create CT-guided interventional technique. At present, CT-guided percutaneous pulmonary biopsy has played an important role in the early diagnosis of lung mass, and its clinical value has been fully affirmed [2,3]. Multi-layer spiral