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目的：研究ＣＴ导向胸部病灶穿刺活检的方法及应用价值。材料与方法：８３例中，肺内病变７０例，纵隔病变１０例，胸壁及胸膜病变３例，穿刺针为肺活检针，共穿９３针。结果：穿刺成功率为１００％，取材病理检验效果，理想占８０．７％，可靠占１３．３％，总可靠率为９４．０％，不可靠６．０％。结论：精确的定位，熟练的技术及病人的良好配合可提高穿刺成功率和取材的可靠性。
Objective: To study the method and value of CT-guided thoracic lesion biopsy. Materials and Methods: Of the 83 cases, 70 were lung lesions, 10 were mediastinal lesions, 3 were chest wall and pleural lesions. The puncture needles were lung biopsy needles, and 93 needles were used. Results: The success rate of puncture was 100%. The results of pathological examination were taken as ideal, accounting for 80.7%, reliable 13.3%, total reliability rate 94.0%, unreliable 6.0%. Conclusion: Accurate positioning, skilled techniques and good patient cooperation can increase the success rate of puncture and the reliability of the materials.