CT引导经皮穿刺直径≤2cm肺部结节的临床价值

Clinical value of CT-guided percutaneous fine needle aspiration in pulmonary no dules smaller then 2.0 cm in diameter

目的 :评价CT引导经皮肺穿刺直径≤ 2cm结节活检的临床价值。方法 :2 3 0例CT引导经皮肺穿刺术中肺部结节直径≤ 2cm ,并经病理或随访证实者 51例 ,分析其敏感性、特异性、准确性及并发症。结果 :51例中肺癌 3 2例 ,穿刺确诊 2 5例 ,假阴性 7例 ,肺部良性病变 19例 ,无假阳性。诊断敏感性 78.13 % ,特异性 10 0 % ,诊断准确率 86.2 7% ,阳性预测值 10 0 % ,阴性预测值 73 .0 8%。气胸发生率 9.8% ,无一需做闭式引流。结论 :CT引导经皮穿刺直径≤ 2cm肺部结节活检的准确性较高而并发症较低 。

Purpose:To evaluate the clinical value of CT -g uided percutaneous fine needle aspiration in pulmonary nodules smaller then 2.0 cm in diameter.Methods:230 patients underwent CT-guided percut aneous fine needle aspiration. Among them 51 patients had smaller pulmonary nodu les of ≤2.0 cm in diameter and diagnosed by pathology or proved in follow-up f indings. Sensitivity, specificity and accuracy were calculated, and complication s were analysed.Results:Malignant diseases were proved in 32 of the 51 patients and out of them 25 patients were diagnosed by CT-guided percutaneous fine need le aspiration. There were 7 false negative cases. 19 patients were benign and th ere were no false positives. Diagnostic sensitivity, specificity and accuracy we re 78.1%, 100% and 86.27%, respectively. Positive prediction value is 100% and n egative prediction value is 73.08%. The incidence of pneumothorax was 9.8% and r equired no tube placement. Conclusions:CT-guided percutaneous fine needle aspiration in p ulmonary nodules ≤2.0 cm in diameter has high diagnostic accuracy, low complica tion incidence, and it may be the first choice for qualitative diagnostic method in pulmonary nodules.