CT引导下穿刺术对疾病的定性诊断、鉴别诊断及治疗有非常重要的价值,穿刺成败取决于很多因素,准确定位是其前提和关键。目前大型医院先进的CT机一般会自带软硬件结合的定位系统,其定位准确,操作方便,但是设备昂贵、检查收费较高,对于中小型医院及一般患者,在经济上很难承受;中 CT guided puncture is very important for the qualitative diagnosis, differential diagnosis and treatment of the disease. The success or failure of puncture depends on many factors. Accurate positioning is the premise and the key. At present, advanced CT scanners in large hospitals generally come with their own hardware and software positioning system, which is accurate in positioning and convenient to operate. However, the equipment is expensive and inspection fees are high. It is economically difficult for small and medium-sized hospitals and general patients.