64排螺旋CT血管造影颈脑血管成像扫描技术优化及临床应用

The Clinical Application and Optimization of 64-slice Spiral CT Angiography Scan Technology on Brain and Neck Vascular Imaging

目的:探讨64排螺旋计算机断层扫描(CT)血管造影颈脑血管成像扫描技术优化与临床应用价值。方法:将本院2013年1月-2014年12月收治的123例头颈部血管病变患者或相关高风险体检人员作为本次研究对象,随机将其分成研究组(68例)与对照组(55例)。对照组行常规剂量扫描,扫描参数设置为120 k V、220 m A,扫描层厚度为10 mm,原始图像薄层重建1.25 mm,重建间隔1.25 cm,扫描矩阵512×512;研究组行低剂量扫描,具体参数如下:100 k V、80 m A,其余参数同对照组,对两组颈脑血管病变患者颈脑血管图像评分、病变、诊断价值等进行观察对比。结果:研究组颈脑血管图像评分、阳性率以及阴性率均优于对照组,组间比较,差异具有统计学意义(P<0.05)。结论:对头颈部血管病变患者应用64排螺旋CT血管造影低剂量扫描,可提高图像质量。

Objective To study the optimization and the clinical application value of 64-slice spiral CT angiography scan technology on brain and neck vascular imaging. Methods 123 patients with head and neck vascular lesions in our hospital from January 2013 to December 2014 were selected and analyzed. 68 cases were selected into observation group and 55 cases were control group. Results The neck cerebrovascular image score, positive rate and negative rate for observation group were better than control group（p 0.05）. Conclusion The method application with low-dose scan, can improve the image quality and diagnosis value.