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目的讨论总结 CT 引导下经皮胸部穿刺活检术对于<3cm 胸部病灶的穿刺技巧.方法回顾分析191例行 CT 引导下经皮胸部穿刺活检术病例,分析<3cm 病灶容易出现并发症的原因,总结穿刺技巧.结果直径<3 cm 病灶的并发症发生率(气胸51%,出血57%)明显高于≥3 cm 病灶(气胸18%,出血20%), P<0.01,有显著差异.结论病人默契配合,操作者精确定位,准确穿刺,高效采集.“,” Objective analyse the skils of CT-guided percutaneous chest biopsy < 3 centimeters of lesions. Methods retrospective analysis 191 routine CT-guided percutaneous puncture biopsy of the chest cases , to analysis < 3 cm lesions prone to the causes of complications, summarizes puncture skils measures. Results for < 3 cm lesions ,the pneumothorax rate was 51 % and bleeding rate was 57%; For ≥ 3cm lesions ,the pneumothorax rate and bleeding rate were 18 % and 20 % respectively, P<0.01. There were significant differences Conclusion the patient with the tacit understanding, the operator accurate positioning, accurate puncture positioning, accurate puncture, active prevention and correct treatment.