多层螺旋CT MPR技术应用于肺小结节术前定位的价值观察

Application Value of Multi-slice Spiral CT MPR Technique for Preoperative Localization of Pulmonary Nodules

目的观察多层螺旋CT多平面重建(MPR)技术在肺小结节术前定位中的应用。方法对95例经多层螺旋CT检出肺小结节或磨玻璃样变(GGO)的患者根据术前定位引导穿刺方法的不同分为常规组(55例,常规CT轴位扫描引导穿刺)和MPR组(40例,利用MPR技术对肺内结节穿刺术前定位),评估两组定位穿刺与手术情况,并评价定位成功率。结果两组病灶至胸膜距离、胸腔镜肺结节楔形切除手术时间、失血量对比无明显差异(P>0.05),但与常规组相比,MPR组套管针调整次数、穿刺次数明显少,穿刺时间显著短(P<0.05)。与常规组相比,MPR组轻度气胸发生率、肺内出血率明显低(P<0.05),定位成功率无明显差异(P>0.05)。结论多层螺旋CT MPR技术可直观显示穿刺定位路径,减少穿刺过程的调整次数、所花时间及并发症发生率,对肺小结节术前定位有重要指导作用。

Objective To observe the application value of multi-slice spiral CT multiplanar reconstruction(MPR)for preoperative localization of pulmonary nodules.Methods 95 patients who were detected with pulmonary nodules or ground glass opacity(GGO) by multi-slice spiral CT were retrospectively extracted.According to different preoperative localization guided puncture methods,they were divided into a routine group(55 cases,conventional CT axial scan guided punctu re) and MPR group(40 cases,preoperative localization for pulmonary nodules by MPR technique).The positioning puncture and operation of the two groups were evaluated,and the localization success rate was evaluated.Results There was no significa nt difference between the two groups in distance from lesions to pleura,operation time of thoracoscopic pulmonary nodular wedge resection or blood loss volume(P>0.05).However,compared with the routine group,adjustment number of trocar and number of punctures in the MPR group we re significantly less,and punct u re time was significa ntly shorter(P<0.05).Compa red with routine group,incidence of mild pneumothorax,intrapulmonary bleeding rate in the MPR group were significantly lower(P<0.05).There was no significa nt difference in localization success rate between the two groups(P>0.05).Conclusion The multi-slice spiral CT MPR technique can visually display the puncture localization path,reduce adjustment number in the puncture process,spending time,and incidence of complications.Which is of important guiding role in preoperative localization of pulmonary nodules.