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目的探讨CT引导下经皮穿刺针吸活检对肺部病变的诊断价值及影响其准确性的因素。方法回顾性分析自2002年5月至2003年10月连续性行CT引导下肺部病变经皮穿刺针吸活检的412例病例。所用穿刺针为Chiba18G抽吸针。所取组织行病理组织学检查,并分析其准确性。结果412例经手术、随访或临床检查证实为恶性肿瘤334例,其中穿刺病理证实为恶性肿瘤313例,确诊率为93.7%(313/334)。假阴性21例,假阴性率为6.3%(21/334)。无假阳性。诊断良性病变56例,良性病变确诊率为71.8%(56/78)。术后发生气胸19例,占总穿刺次数的4.4%。结论CT引导下经皮穿刺针吸活检术对肺部病变诊断敏感性与病灶大小有关,它是一种安全有效、准确性高、并发症少的诊断方法。
Objective To investigate the diagnostic value of percutaneous needle aspiration biopsy under the guidance of CT and the factors influencing its accuracy. Methods A retrospective analysis of 412 cases of continuous lung CT-guided percutaneous needle aspiration biopsy from May 2002 to October 2003 was performed. The puncture needle used was Chiba18G aspiration needle. Histopathological examination of the tissue taken and analyzed its accuracy. Results A total of 412 cases of malignant tumors were confirmed by operation, follow-up and clinical examination in 412 cases. Among them, 313 cases were diagnosed as malignant tumors by puncture. The diagnosis rate was 93.7% (313/334). False negative in 21 cases, false negative rate was 6.3% (21/334). No false positives. 56 cases of benign lesions were diagnosed, and the diagnosis rate of benign lesions was 71.8% (56/78). Postoperative pneumothorax occurred in 19 cases, accounting for 4.4% of the total number of punctures. Conclusion CT-guided percutaneous needle aspiration biopsy on the sensitivity of lung lesions diagnosis and lesion size, it is a safe and effective, high accuracy, less complications diagnosis.