thresh hold for fetal pole detection is in 5th weeks and for embryonic pole
is at 5-6 weeks, when the mean sac diameter is between 5 and 12 mm.12 Abnormal single pregnancies visualized in 0.57% patients having anencephalic ,hydrocephalic fetuses and numerous cysts in the fetal abdominal cavity.
(1) In the sample of 120 women, abdominal imaging picked up all 116 gestational sacs detected by vaginal ultrasound before the drugs were taken; it underestimated gestational age by 1.6 days, but the investigators consider this underestimation "unlikely to be clinically meaningful." Of greater concern, in examinations 24 hours after women took the drugs, abdominal ultrasound missed three of 34 retained gestational sacs and four of 14 instances of cardiac activity in an embryonic pole
(a very early sign of a developing embryo).
Any of the following three signs on transvaginal ultrasound indicate a nonviable pregnancy: no yolk sac in a 10-mm gestational sac, no embryonic pole
in a 20-mm gestational sac, or no cardiac activity with a crown-rump length of 5 mm.
Until technology transfers allow the emergence of competitive clusters specific to ACP, the idea of the CDE is to interlink European competitiveness with embryonic poles
in the ACP regions.