摘要
基于空间几何原理和超声多普勒三角测量法,提出了一种胎头位置、宫颈扩张的自动测量方法,以替代产科临床使用的传统手工触诊法。研究建立了跟踪定位测量系统模型,讨论了可能引发测量误差的原因。设计并实现了超声多普勒跟踪定位系统,包括超声传感器系统、超声驱动/接收电路和测控系统软硬件。模拟测试表明,所设计的系统对胎头位置和宫颈开口的5次测量平均值绝对误差小于0.25cm,远小于传统手工触诊法的平均误差2.0cm。
In order to replace the conventional method of vagina palpation which has been widely used in obstetrics, a new method for detecting fetal head position and cervical dilation automatically is proposed based on the analytic geometry of space and ultrasonic triangulation. A tracking （position） model is set up and kinds of factors which may cause detecting errors are discussed. A ultrasonic measurement system for body tracking （position） is developed. The error of average result from 5 times detection by this system is less than 0.25 cm, much less than the error of a conventional vagina palpation, that is average around 2.0 cm.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2010年第1期152-156,共5页
Journal of University of Electronic Science and Technology of China
基金
广东省科技计划(2007B030501009)
关键词
胎儿监护
跟踪定位
三角测量法
超声仪器
超声测量法
fetal monitoring
tracking position
triangulation
ultrasonic devices
ultrasonic measurement
