论文部分内容阅读
目的探讨低剂量CT引导下经皮氩氦刀微创治疗肺部肿瘤的可行性。方法采用随机对照试验方法,采用常规剂量引导的对照组与采用低剂量引导的试验组各20例;记录两组间CT引导下氩氦刀冷冻术中的影像学特性、表现与CT引导下辐射剂量的差异性是否有统计学意义。结果两组不同剂量CT引导下肿瘤影像学特性、术中并发症(出血、气胸)图像质量评价影像学表现差异无统计学意义,两组噪声与伪影差异有统计学意义(p<0.05);在15mA引导扫描时候,单次扫描CT剂量加权指数(CTDIvol)从常规的17.95mGy降低至2.26mGy,对照组CT下引导肺部肿瘤扫描的剂量长度乘积(DLP)为(6426.5±4352.21)mGy.cm;试验组DLP为(2492.68±1179.52)mGy.cm;DLP差异有统计学意义[10](p<0.05)。结论低剂量CT引导下经皮氩氦刀微创治疗肺部肿瘤方法,减低患者辐射剂量,可确保手术顺利实施的整个过程,值得同行借鉴与推广。
Objective To investigate the feasibility of low-dose CT-guided percutaneous argon-helium knife minimally invasive treatment of lung cancer. Methods A randomized controlled trial was conducted. Twenty patients in the control group and 20 patients in the low-dose group were enrolled in this study. The imaging characteristics of CT-guided cryoablation were recorded. The CT-guided radiography Dose differences were statistically significant. Results There was no significant difference in imaging features between the two groups under the CT guidance of different doses. There was no significant difference in imaging quality between the two groups (p <0.05) (CTDIvol) decreased from the normal 17.95mGy to 2.26mGy at the time of 15mA guided scan, and the dose-length product (DLP) of lung tumor scan guided by CT in the control group was (6426.5 ± 4352.21) mGy . The DLP of the experimental group was (2492.68 ± 1179.52) mGy.cm; the difference of DLP was statistically significant (p <0.05). Conclusion Low-dose CT-guided percutaneous argon-helium knife minimally invasive treatment of lung cancer methods to reduce the radiation dose to ensure the smooth implementation of the entire process, it is worth learning and promotion.