摘要
目的:探讨64排螺旋CT在头颈部CTA减影中两种扫描方法的效果,以期提高减影效果和诊断准确率。材料与方法:用64排螺旋CT的两种扫描方法各随机取100例患者的减影图像进行比较,第1种扫描方法系用增强图像减去平扫图像减影方法,第2种扫描方法系用增强第2期图像减去增强第1图像的减影方法。结果:两种方法都能获得减影图像,但他们的减影效果差异较大。结论:第2种扫描方法减影效果明显比第1种扫描方法效果好。
Purpose： To study the effect of two kinds scanning method of 64 - slice spiral CT on the head and neck CTA subtraction, and to improve subtraction effect and the accuracy of diagnosis. Materials and Methods： subtraction ima- ges of random sampling 100 cases separately with two kinds scanning method of 64 - sloe spiral CT ware compared. The first scanning method is using the enhance imaging to subtract plane scan imaging. The second scanning method is using the en- hance second phase imaging to subtract enhance first phase imaging. Results： Bath methods all can abstain subtraction ima- ging , there are significance difference between subtraction effect of them. Conclusion ： subtraction effect of the second scan- tling method is superior that the first scanning method.
出处
《现代医用影像学》
2012年第4期214-217,共4页
Modern Medical Imageology
关键词
扫描方法
位移
血管造影技术
减影
Scanning method Displacement Angiography Subtraction
