The average sac diameter is determined by measuring the length,width and height then dividing by 3 .
The gestational sac(GS) is the earliest sonographic finding in pregnancy.
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The accurate determination of a patient's "due" date, referred to by doctors and midwives as the EDC (Estimated Date of Confinement) or EDD (Estimated Date of Delivery), is very important for a variety of reasons.
birth controlbirth control failurefalse positivesfam/fertility awarenessfolic acidinfertilityirregular periodsovulationpcos (polycystic ovarian syndrome)pregnancy teststtc (trying to conceive)PREGNANCY CHOICESabortionadoptionbirth centersbirth plansdoctors/midwiveshome birthhospitalsmedicated childbirthnatural childbirthrepeat cesareansubsequent pregnanciessurgical birthsurrogacyteen pregnancyunassisted childbirthunassisted pregnancyunplanned pregnancyvaginal birthvbac (vaginal birth after cesarean)water birth PREGNANCY - SYMPTOMS/TRIMESTERS/ETCbalancebleeding - after sexbleeding - nosebleedsbloatingbody changesbowel movementsbraxton hicksbreast issues/changesbreathing difficultyclicking soundscolostrumconstipationcrampscravings/aversionsdental health and hygienedizzinessdreamsdroppingemotionsestimated due datesfaintingfallingfatiguefears and worriesfrequent urinationgashairheadachesheartbeat - motherheartburnhemorrhoidshormone changeshow many months?
I'm going for my first one in a couple weeks and I'm excited/nervous/not sure what to expect!It will be difficult to see if the mother has a retroverted uterus or fibroids.The GS is an echogenic ring surrounding an anechoic centre.With today's modern equipment, we can obtain very reliable images and measurements of even very early pregnancies, sometimes even seeing a heartbeat as early as 5-6 weeks!The most common misconception we encounter almost daily, has to do with how accurate ultrasounds are in fixing the EDC at different stages of pregnancy.However, it is extremely common to encounter patients who have irregular or infrequent menstrual cycles, or have fibroid tumors that cause their uterus to feel enlarged on pelvic exam, or who conceive shortly after a pregnancy ends (without ever actually having had a period after the last pregnancy), or who got pregnant while taking birth control pills, and these situations often render the above methods useless and misleading when trying to figure out a reliable EDC.