Eik-Nes S H, Marsál K, Kristoffersen K
Ultrasound Med Biol. 1984 May-Jun;10(3):329-37. doi: 10.1016/0301-5629(84)90167-4.
A method was developed for non-invasive measurement of human fetal blood flow. The method combines real-time ultrasonography with 2 MHz pulsed Doppler technique. The blood flow is calculated from the blood velocity, estimated from the Doppler spectrum, and the vessel diameter, measured in the real-time image. Time-distance recording was applied for measurements of the pulsatile diameter changes in the fetal aorta. The method proved to possess a good accuracy and reproducibility when tested in vitro experiments and in a comparison with electromagnetic flow measurements in animals. Possible sources of error were analysed and recommendations for minimizing the risk of errors are presented.
开发了一种用于无创测量人类胎儿血流的方法。该方法将实时超声检查与2兆赫脉冲多普勒技术相结合。血流由根据多普勒频谱估算的血流速度和在实时图像中测量的血管直径计算得出。应用时间-距离记录来测量胎儿主动脉的搏动性直径变化。在体外实验以及与动物电磁血流测量的比较测试中，该方法被证明具有良好的准确性和可重复性。分析了可能的误差来源，并提出了将误差风险降至最低的建议。
