平板DSA低剂量透视在TACE治疗中的应用

The application of the low-dose fluoroscopic positioning of flat-DSA in the treatment of TACE

目的探讨平板数字减影血管造影(DSA)低剂量透视在经导管化疗栓塞术(TACE)治疗中的适用性。方法将60例行TACE的肝癌患者随机分为研究组(30例),对照组(30例),将研究组透视模式设置为低剂量(low),对照组常规设置为普通模式(normal),其余参数相同。对2组患者的透视保存图像进行对比分析并对辐射剂量进行评估。结果 2组图像质量评分分别为(11.21±0.71)分和(11.47±0.61)分,差异无显著性(P>0.05)。研究组和对照组在单位时间内的累积剂量(CD)增加值分别为(14.84±4.68)mGy/min和(19.23±5.55)mGy/min,研究组的每分钟累积剂量比对照组低22.83%(P<0.05)。结论 TAOE治疗中,平板DSA低剂量透视的图像质量与常规剂量比较无明显下降,且辐射剂量显著降低,值得推广。

Objective To evaluate the feasibility of clinical application of low dose fluoro mode in transcatheter arterial chemoembolization with flat panel digital subtraction angiography. Methods 60 cases planned to undertake transcatheter arterial cliemoembolization were randomly divided into two groups：the study group （low dose group, 30 cases）and the control group（routine dose group, 30 cases）. Dose reduction acquisition mode was used in the study group and conventional acquisition mode in the control groupo the other parameters were the same. The radiation dose and the image quality were compared and analyzed. Results The score of image quality of these 2 groups were（ 11.21 ±L 0.71 ） and （11.47 ± 0.61 ）,respectively,with no significant difference （P〉0.05）.The cumulative dose increase of these two groups were （14.84 ± 4.68）and （19.23 ± 5.55）mGy/min,which were lower 22.83% in the study group （P〈0.05）. Conclusion The image quality of the two groups was not significant different but the close reduced obviously in low dose group.The low dose fluoro could be used routinely in transcatheter arterial chemoembolization.