Stopped: lack of funding
The investigators speculate that ultrasound examination in the first trimester can accurately detect placental location. By performing both transabdominal ultrasound and later hysteroscopy on women with a first trimester missed abortions and comparing the ultrasound findings to those of the hysteroscopy the investigators will evaluate the performance of the ultrasound in detecting the placenta location.
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The accuracy of placental site/ gestational sac implantation with ultrasound in the first trimester
Timeframe: up to 12 weeks