Badria L, Young G B
J Clin Ultrasound. 1976 Dec;4(6):403-7. doi: 10.1002/jcu.1870040606.
Three hundred cases in which both ultrasonic and soft tissue placentography examinations had been done are correlated with each other and the clinical findings. These are grouped in two series, one in 1972-1973 and the other 1973-1974. The accuracy rate for both methods was 95 per cent. Outright errors were 2 per cent, and cases in which correlation was lacking for reasons other than diagnostic errors were 3 per cent. Reasons for this lack of correlation are discussed and illustrated. Seven examples of the ascending (or migrating) placenta were also found and an illustrative case is described.
对三百例同时进行超声检查和软组织胎盘造影检查的病例进行了相互关联，并与临床发现进行了对比。这些病例分为两个系列，一个是1972 - 1973年的，另一个是1973 - 1974年的。两种方法的准确率均为95%。直接错误率为2%，因诊断错误以外的原因缺乏相关性的病例为3%。对这种缺乏相关性的原因进行了讨论并举例说明。还发现了7例胎盘上升（或迁移）的病例，并描述了一个说明性病例。
