Zeitschrift für Geburtshilfe und Perinatologie
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Z Geburtshilfe Perinatol · Mar 1989
[Vaginal sonographic assessment of a cross section of the amniotic sac in early pregnancy].
The present study describes the results of gestation sac measurement in 237 cases in early pregnant women by the technique of transvaginal sonography. Mean distance between uterine cavity and vaginal scanner probe is the reason for early detection of the gestation ring. ⋯ The early measurement of gestation sac diameter is usefull to determine correct gestation age in case of unknown conception date. From our point of view the gestation ring diameters, obtained by transabdominal technique should not be used father more for pregnancy determination when choosing the transvaginal method.