肺穿刺引导器诊断肺内肿块的应用

目的探寻一种方法简单、定位准确、穿刺成功率高的用于经皮肺穿刺活检术(TNB)的肺部病灶定位引导器械。方法依据患者在CT影像学的病灶部分,选定病灶在体表的投影部位,将已获得专利的肺穿刺引导器贴敷固定于胸壁上,在CT下确定引导器上的2个点,测2个点延长线上病灶的位置和离皮肤的距离,穿刺针就可以准确地进针至获取病灶。结果临床应用肺穿刺定位器共100例,分别分为栅型定位器组50例、穿刺引导器组50例,两组手术时间对比,P<0.01。两组CT检查的次数对比P<0.05说明两组间差异明显。结论获发明专利的肺穿刺引导器,设计原理科学、操作方便、定位准确、成功率高、并发症少,与栅型定位器比较,更准确、减少穿刺次数,提高成功率。

Application of lung puncture guider in diagnosing pulmonary masses

Objective To design and develop a simple,accurate guiding device that can be successfully used in lung lesion localization for transthoracic needle biopsy(TNB).Methods According to the lesion position displayed on CT images,the projection site of the lesion on the body surface was determined.The patented lung puncture guider was fixed and pasted to the chest wall.On CT images,the two point-markers of the guider were precisely determined.The distance from the lesion position to skin on the extension line of the two point-markers was measured,with the help of which the puncture needle could be accurately inserted in the lesion to obtain tissue sample.Results The pulmonary puncture locator was employed in 100 patients,including grid-locator group(n=50)and puncture guiding device group(n=50).Statistically significant differences in the time spent for TNB(P<0.01)and in the number of CT examination times(P<0.05)existed between the two groups.Conclusion The patented lung puncture guider carries lots of advantages,such as scientific design principle,easy to operate,accurate positioning,higher success rate of puncturing and less complications.Compared with grid-locator,patented guider can make the puncturing more accurate,thus,reducing the number of puncturing times and improving the success rate.