脐带血流监护技术及其临床应用

探讨脐带血流声谱图和血流动力学指标的监护技术及其在胎儿监护中的意义 .研制了基于超声多谱勒技术的脐动脉血流监护系统 ,成功地解决了一直困扰该类系统的灵敏度和稳定性问题 ;对脐血流声谱进行实时彩色编码显示 ,使声图谱具有良好的视觉灵敏度 ;设计了快速血流量比等一组动力学特征指标 ,并在大量临床试验的基础上总结出本系统的参考诊断标准 .临床验证表明 ,该系统灵敏度高、特异性强、结构简单 ;脐血流监护技术为产科临床提供了有效的胎儿监护新手段

Monitoring technique of umbilical cord blood streams and its clinical application

A new pattern of fetal monitoring system is developed to monitor color compiling sound spectrum of umbilical cord bloodstream. Problems of sensitivity, signal-to-noise radio and stability have been successfully solved. The invisible gray-scale difference is changed into legible color image by color compilation processing. An adjustable tonality region is specially designed to adapt different signals to improve visual sensitivity. A group of dynamic indeces are calculated automatically by the system. Reference normal indeces and charts were obtained after thousands of clinic tests. It is proved in clinic that the system has good sensitivity and specificity, and it can not only monitor but also predict the growing condition of fetus and find out abnormal intrauterine.