磁共振成像导航系统辅助经皮穿刺活检术的初步应用

目的 探讨MRI导航系统EMT-100辅助经皮精准穿刺活检术的有效性以及安全性.方法 使用MRI导航系统EMT-100辅助引导对42例胸、腹部病灶行经皮穿刺活检术.穿刺成功率作为有效性评价的主要依据,观察穿刺活检的成功率、总耗时、平均穿刺次数、平均扫描次数及并发症情况.结果 42例患者,1次穿刺成功率86％ (36/42),2次穿刺成功率14％(6/42),活检成功率100％;穿刺平均定位时间(11.5±5.5) min,平均穿刺次数(1.4±0.5)次,平均扫描次数(4.2±0.8)次,其中32例肺部病灶中2例(6.2％)痰中带血,1例(3.1％)少量气胸,其他患者均未出现严重并发症.结论 MRI导航系统辅助经皮穿刺活检术具有安全、定位准确、穿刺成功率高、适用范围广、无辐射等优点,为临床准确获取病变组织并获得病理诊断结果提供帮助,不失为一种有价值的导引技术选择.

Preliminary application of MRI-navigation system in assisting the performance of percutaneous biopsy

Objective To evaluate the effectiveness and safety of MRI-navigation system EMT-100 in assisting the performance of precise percutaneous puncture biopsy.Methods With the help of MRI-navigation system EMT-100,percutaneous puncture biopsy of thoracic and abdominal lesions was performed in 42 patients.The puncture success rate was used as the main index to evaluate the effectiveness of MRI-navigation system EMT-100.The success rate of puncture biopsy,the total time used for procedure,the average number of puncturing,the average number of scanning,and the incidence of complications were recorded.Results In the 42 patients,the success rates with single and twice puncturing were 86％ (36/42) and 14％ (6/42) respectively.The success rate of puncture biopsy was 100％.The mean time used for locating puncture site was (11.5±5.5) min;the average number of puncturing was (1.4±0.5) times,and the average number of scanningwas(4.2±0.8) times.Among the 32 patients with pulmonary lesions,bloody sputum occurred in 2 patients (6.2％) and small amount pneumothorax in one patient (3.1％),and no serious complications occurred in other patients.Conclusion In performing percutaneous puncture biopsy of thoracic and abdominal lesions,the use of MRI-navigation system is safe.This technique has certain advantages,such as accurate positioning,high puncture success rate,wide range of application,radiationless,etc.It can help precisely obtain the lesion tissue and get pathological diagnosis.Therefore,it is really a valuable guiding technology.(J Intervent Radiol,2017,26:263-265)