碘克沙醇联合低电压CT扫描在孤立性肺结节成像中的质量评价

摘要

目的:探讨低浓度(270mgI/L)碘克沙醇联合低电压CT扫描在孤立性肺结节成像中的应用价值.方法:选取2017.02—2018.02我院经病理检查确诊为孤立性肺结节的80例患者为研究对象,入选患者均进行常规CT扫描,根据扫描参数的不同,随机分为观察组和对照组,每组40例.观察组给予270mg/L的低浓度碘克沙醇,联合100kV管低电压,利用迭代重建图像;对照组给予常规350mgI/L的欧乃派克,联合120kV管电压,利用滤波反投影重建图像.比较两组图像质量的主观评分、图像质量客观评分以及辐射剂量.结果:观察组图像质量主观评分为(4.04±0.52)和对照组的(3.87±0.49)无显著差异,P>0.05;观察组图像质量客观评分相关指标CT值、SD值、SNR以及CNR和对照组均无显著差异,P>0.05;观察组辐射剂量相关指标DLP和ED均低于对照组,差异有统计学意义P0.05. There was no significant difference between Objective quality scores such as CT values, SD values, SNR, and CNR between the two groups, P>0.05. The DLP and ED of the radiation dose-related indicators in the observation group were lower than the control group (P<0.05). Conclusion: Low-concentration iodixanol combined with low-voltage CT scan has high image quality and low radiation dose in solitary pulmonary nodule imaging, which is worthy of clinical application.