摘要
目的:通过CT双能量去骨和CT数字减影在脑血管成像的对比分析,探索其优势与特点,更好地为临床和患者服务。方法:使用西门子64层双源螺旋CT和双筒高压注射器,将患者随机分为实验组和对照组,每组100人,实验组用双能量去骨成像法;对照组用DSACT成像法,每位患者注射50ml造影剂和50ml生理盐水,注射速度为4ml/s。结果:两组脑血管图像无骨骼影干扰,去骨完全彻底;实验组图像有较多的去骨缺损,血管表面清晰度较差;实验组图像有较多的静脉影干扰;实验组患者辐射剂量低。结论:DSACT成像法的图像质量优于双能量去骨成像法,但其辐射剂量高于双能量去骨成像法。
Objective To probe the advantages and characteristics of imaging on dual-energy CT boneless and digital subtraction brain angiography through comparative analysis, Methods Siemens 64-slice dual-source spiral CT and double high pressure syringe; The 200 patients were randomly divided into dual-energy group（n=100） and DSACT group（n=100）; Every patient was injected 50 ml contrast medium and 50ml normal saline, injection rate was 4ml/s. Results The groups of cerebra-vascular imaging without interference, and completely boneless; but experimental group has more boneless defects and vascular surface definition less. The cerebral arteries were interfered by the venous shadow in dual-energy group, and the dual-energy group received low-dose radiation. Conclusion The DSACT imaging quality is superior to dual-energy CT boneless imaging. The radiation dose of the dual-energy CT is lower than DSACT. [Chinese Medical Equipment Journal. 2009.30 （3）： 83-85]
出处
《医疗卫生装备》
CAS
2009年第3期83-85,共3页
Chinese Medical Equipment Journal
关键词
螺旋CT
血管成像
数字减影
造影剂
双能量
spiral CT
angiography
digital subtraction（DSA）
contrast medium
dual-energy
