合理选择影像介导并使用双切割系统活检针行肺活检的临床价值

目的探讨不同影像介导的合理性、双切割系统活检针的作用以及对临床受益反应的影响。方法238例疑诊为恶性肿瘤的肺部病变患者分成两组，应用Biopince^TM full core切割针经皮肺活检，79例于DSA下进行，其余159例CT下进行。结果233例患者取得了满意的组织学标本，取材成功率为97．90％。DSA、CT组活检阳性率分别为89．33％、96．32％（P〈0．05）。两组病例共有91例患者经手术病理证实，DSA、CT组符合率分别为88．89％（24／29）、96．66％（60／62）（P〈0．05）。主要并发症为气胸和出血，DSA、CT组发生率分别为20．00％和12．27％（P〉0．05）。结论合理选择影像导向和活检针，可以提高取材准确性，减少创伤，从而提高诊断正确率，降低并发症发生率。

Clinical significance of different imaged-guiding and "Cut&Trap" cannula system in percutaneous lung biopsy

Objective To evaluate the role of different imaged-guidlng, the function of ＂Cut ＆ Trap＂ cannula system, and their clinical benefits for percutaneous lung biopsy. Methods All 238 cases suspected lung malignancy were divided into two groups： 79 cases underwent DSA-guided biopsy, 159 underwent CT-guided biopsy using ＂BiopinceTM full core＂ biopsy needle. Results Satisfied histological specimens were obtained in 233 cases. The success rate of biopsy was 97.90%, and the positive diagnostic rate was 89. 33% and 96. 32% in DSA-guided and in CT guided biopsy, respectively （P〈 0.05）. Diagnosis of 91 cases were confirmed by surgery and pathology, and the accordance rate was 88.89% （24/29）in DSA guided, and 96.66% （60/62） in CT-guided （P〈0.05）. Complications iricluded pneumothorax and bleeding, and the incidence of complications was 20.00% and 12.27% of DSA and CT guiding, respectively （P〈0. 05）. Conclusion Reasonable chosing of imaged-guiding and biopsy needle will improve diagnostic accuracy and reduce complication.