Trans vaginal ultrasound with a partially full bladder will be done at gestational age earlier than 10 weeks to assess the site of intrauterine gestational sac to the endometrial cavity and the distance between the implantation site and the internal cervical os . Doppler assessment of the retrochorionic blood flow at the area behind the maximum chorionic tissue to detect resistance index.
Study Type
OBSERVATIONAL
Enrollment
200
transvaginal ultrasound done before 10 weeks gestational age measuring the distance between the lower end of the hyperechoic trophoblast ring of the gestational sac and the inner cervical os
Ahmed Maged
Cairo, Egypt
RECRUITINGDistance between the implantation site and the internal cervical os
Time frame: 10 weeks to 40 weeks gestational age
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