经皮芯针肺穿活检对≤5mm肺小结节诊断正确率及并发症评估

目的：通过自动枪经皮针芯针肺穿活检对≤5mm肺小结节的诊断准确率和并发症发生率评估。方法回顾性分析42例直径≤5mm（平均直径4mm）肺小结节患者经皮肺穿活检资料，透视引导下经皮针芯针肺穿活检30例，CT引导下经皮针芯针肺穿活检12例。结果透视引导下经皮肺穿活检的诊断准确率86.7％（26/30），发生并发症2例（咯血、气胸各1例），并发症发生率6.7％（2/30）；CT引导下经皮芯针穿刺活检的诊断准确率91.7％（11/12），发生并发症1例（咯血），并发症发生率8.3％（1/12）。二者诊断准确率、并发症发生率差异无统计学意义。结论透视或CT引导下经皮肺穿刺活检对≤5mm肺小结节诊断准确率均较高，并发症发生率均较低。

ObjectiveTo evaluate the accuracy and incidence of complication of by automatic guns percutaneous core needle biopsy for the small lung nodules less than 5mm. Methods42 patients with small nodule diameter≤5mm（mean diameter,4mm） underwent percutaneous core needle biopsy were included in this study. Imaging guidance was a perspective 30 cases and 12 cases of computed tomography（CT）ResultsPercutaneous core needle biopsy accurate diagnosis rate was 86.7%（26/42）respectively fluoroscopic guidance and 91.7%（11/12）with CT guidance（P〉0.05）. The complication rate of percutaneous core needle biopsy was 7.1%（3/42）,including hemoptysis（n=2）,and pneumothorax（n=1）. The complication rate was 6.7%（2/30）with fluoroscopic guidance,and 8.3%（1/12）CT guidance（P〉0.05）.ConclusionPercutaneous core needle biopsy by automatic guns for small nodules under fluoroscopy or CT guidance conclusive diagnostic pathology（≤5mm in diameter）is useful.