彩色多普勒超声在胎儿围产期的应用

The Clinical Application Value Of Color Doppler Ultrasound Monitoring Umbilicus Artery Blood Stream

目的应用彩色多普勒超声监测脐动脉血流S／D比值在胎儿监护中的临床应用价值。方法应用彩色多普勒超声测定196例妊娠32～42W妇女胎儿脐动脉收缩期最大血流速度与舒张末期血流速度的比值（S／D）、搏动指数（PI）、阻力指数（RI）。结果正常妊娠妇女S／D比值随孕周的增加而逐渐下降。胎儿宫内缺氧的S／D比值、PI、RI显著升高。结论彩色多普勒超声可直接测定脐动脉血液循环，可及早的警示和发现胎儿宫内异常情况，指导临床提早采取干预和处理措施，降低围产儿死亡或致残率。

Objective The clinical application value of Color Doppler Ultrasound monitoring umbilicus artery blood stream S/D ratio in fetal ward ship. Methods The Color Doppler ultrasound was applied to measure 196 cases fetal （the gravidity 32-42 weeks）ratio of umbilicus artery of the maximum velocity in systolic （Vmax）/ minimum velocity（Vmin） in diastolic （S/D）,pulse index （PI）,resistance index（RI）. Result The S/D ratio of natural gravidity women descended gradually by the increase of pregnant weeks, but the S/D ratio,PI and RI of fetal distress markedly raised. Conclusion The Color Doppler ultrasound can measure the circle of umbilicus artery blood directly, warn and discover exceptional circumstance of fetal in advance .It is of benefit to take measures for decreasing the mortality and deformity rate of perinatal neonate.