Lauersen N H, Hochberg H M, George M E
Int J Gynaecol Obstet. 1978;15(6):507-14. doi: 10.1002/j.1879-3479.1977.tb00744.x.
Antepartum nonstress fetal heart rate (FHR) monitoring may become a valuable screening tool for all pregnancies. Two methods proposed for an antepartum FHR monitor are examined: abdominal electrocardiogram (AECG) and variable range directional Doppler (RDD). A good quality (detailed, clearcut baseline) RDD FHR record was obtained in 74/75 (99%) examinations, and a good quality AECG record was obtained i31/75 (41%). Each patient was monitored in the supine, lateral and sitting positions. Considering all positions, 76% of the RDD records and 19% of the AECG records were good. The RDD system was efficacious for routine, clinical antepartum FHR monitoring, but the performance of the AECG was too limited for this purpose.
产前无应激胎心（FHR）监测可能会成为适用于所有妊娠的一种有价值的筛查工具。本文研究了两种用于产前FHR监测的方法：腹部心电图（AECG）和可变范围定向多普勒（RDD）。在75次检查中的74次（99%）获得了质量良好（基线详细、清晰）的RDD FHR记录，在75次检查中的31次（41%）获得了质量良好的AECG记录。每位患者均在仰卧位、侧卧位和坐位进行监测。综合考虑所有体位，76%的RDD记录和19%的AECG记录质量良好。RDD系统对于常规临床产前FHR监测是有效的，但AECG在此目的上的表现过于有限。
