Accurate dating sonogram

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Ultrasound, or sonography, uses sound waves to obtain images of the baby, uterus, placenta and cervix.Ultrasound is very different from X-rays, which involve radiation and have hazards for the pregnancy.The sonograms at our center are performed by experienced perinatal sonographers and obstetricians with subspecialty training in maternal-fetal medicine.Our office performs about 9,000 sonograms a year, has experience with the diagnosis of thousands of congenital abnormalities, and has achieved accreditation by the AIUM and certification as a Prenatal Diagnostic Center by the state of California.The limbs and the yolk sac, though obviously important, are not the primary means of measuring growth.An average length of the embryo at 7 weeks is anywhere between 5mm-12mm. Obviously, every pregnancy is unique and individual factors influence the size of the embryo at this early stage, and the embryo shows development week by week.This is the period of time which provides the most accurate assessment.

Your baby's head, limbs, hands and feet, and some organs can be seen, and - though looking for abnormalities isn't the purpose of the ultrasound - some major problems can be seen at this early stage. The bright white circle center-right is the head, which faces to the left.Features include the forehead at 10 o'clock, the left ear toward the center at 7 o'clock and the right hand covering the eyes at .The International Society of Ultrasound in Obstetrics and Gynecology (ISUOG) recommends that pregnant women have routine obstetric ultrasounds between 18 weeks and 22 weeks gestational age in order to confirm pregnancy timing, to measure the fetus so that growth abnormalities can be recognized quickly later in pregnancy, and to assess for congenital malformations and multiple gestations (i.e. Additionally, the ISUOG recommends that pregnant women have obstetric ultrasounds between 11 weeks and 13 weeks 6 days gestational age in countries with resources to perform them.Performing an ultrasound at this early stage of pregnancy can more accurately confirm the timing of the pregnancy and can also assess for multiple fetuses and major congenital abnormalities at an earlier stage.

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