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Coronary artery imaging with 64-slice spiral CT: an initial study
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 8
- DOI:
- 10.3760/j.issn:1005-1201.2006.08.003
- Key Word:
- 体层摄影术,X线计算机;冠状动脉疾病
Abstract： 目的 探讨64层螺旋CT冠状动脉成像的图像质量和诊断冠状动脉狭窄的准确性.方法 对120例临床可疑冠心病患者进行64层螺旋CT回顾性心电门控增强扫描,用多平面重组(MPR)、最大密度投影(MIP)及容积再现技术(VRT)重组图像,其中60例患者有常规X线冠状动脉成像作对照.结果 以VRT重组像评价图像质量,92例(77%)为1级,22例(18%)为2级,6例(5%)为3级.MPR、MIP及VRT重组像能显示冠状动脉的所有1级、大部分2、3级以及部分4级分支.64层螺旋CT冠状动脉成像诊断冠状动脉≥50%狭窄的敏感性为93%,特异性为98%.结论 64层螺旋CT冠状动脉成像是一种无创、快速的成像方法,对诊断冠状动脉≥50%狭窄有较高的敏感性和特异性.
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