弹簧芯状活检针在CT引导经皮肺穿刺活检中的应用

目的：探讨CT引导下使用弹簧芯状活检针行比皮肺穿刺活检的诊断准确性和并发症发生率。方法：38例使用弹簧芯状活检针的经皮肺穿刺活检。CT扫描确定并引导穿刺途径，达预定位置取材。结果：35例有明显的病理诊断，诊断准确性92％，恶性肿瘤和良性病变的诊断准确性分别为97％和100％。活后并发气胸4例，咯血1例，结论：CT引导下使用弹簧芯状活检针行经皮肺穿刺活检的气胸发生率与细针抽吸相近，使弹簧芯状活检针行CT引导下肺穿刺活检可以提高诊断的准确性。

Application of spring core biopsy needle under CT guidance for percutaneous pulmonary biopsy

Objective:To evaluate the diagnostic accuracy and complication of spring core biopsy needle under CT guidance for percutaneous pulmonary biopsy.Methods:38 cases of percutaneous pulmonary biopsy were performed using spring core biopsy needle under CT guidance.When the needle reached the desired site,a tissue specimen was taken.Results:A definite pathological diagnosis was achieved in 35 cases,the diagnostic accuracy was 92%.The diagnostic accuracy for malignant tumor and benign lesion was 97% and 100%,respectively.4 cases were complicated with pneumothorax and 1 case with hemoptysis.Conclusion:A diagnostic accuracy can be improved using the CT guiding spring core biopsy needle for percutaneous pulmonary biopsy.The complication rate of pneumothorax by CT guiding spring core biopsy needle is similar to that by the fine needle aspiration.