64排螺旋CT肺动脉造影对比剂剂量优化  

64-slice CT Scanner of Computed Tomegraply Angiography(CTPA)Dose Optimization with Contnast Medium of 60 ml and 25 ml

作　　者：梁振华[1] 方挺松[1] 潘邦盛 黄钰坚[1] 肖秀云[1] 冯有丽[1] 

机构地区：[1]佛山市中医院放射科,广东省佛山市528000

出　　处：《现代医用影像学》2015年第1期63-65,共3页Modern Medical Imageology

摘　　要：目的:探讨64排螺旋CT行肺动脉造影时对比剂剂量从60ml减少到25ml的可行性研究及其意义。材料与方法:将50例临床疑诊肺动脉栓塞的病人,随机分成25ml和60ml两组进行CT肺动脉造影检查。运用多平面重建(MPR)最大密度投影(MIP)和容积再现(VR)等方法分别对图像进行评价分析处理,对比评价两种方法的影像学表现。结果:两组病人都顺利完成造影检查,两组病人的图像质量无统计学意义,符合诊断要求。结论:CT肺动脉造影低对比剂用量(25ml),肺动脉显示良好,可满足临床需要。Purpose ： To compare the timage quality of computed tomography pulmonary angiography （CTPA） required with contrast medium of 60 ml and 25 ml using 64-slice CT scanner. Materials and Methods： 50 patients suspected pulmonary embolism undergoing computed tomography pulmonary angiography were randomly divided into two groups, the volume of contrast medium was 60ml, 25ml, respectively. Images were evaluated by MPR, MIP and VR. Results： There was no statistical significance in the two groups. The images quality could be diagnostic. Conclusion： CTPA using 25ml contrast medium can be meet the clinical requirements.

关 键 词：64排螺旋CT 肺栓塞 剂量优化 

分 类 号：R543.2[医药卫生—心血管疾病] R816.41[医药卫生—内科学]