How accurate is ultrasound for dating pregnancy

Accuracy of Ultrasound in Dating your Pregnancy -

With transvaginal ultrasound, checking for embryonic development known to occur within a certain time frame more accurately dates a pregnancy.

What week in pregnancy is most accurate in ultrasound.

Transvaginal ultrasound can see embryonic development about a week before transabdominal ultrasound, the American Pregnancy Association (APA) states.

Accuracy of <i>Ultrasound</i> in <i>Dating</i> your <i>Pregnancy</i> -

Understanding Early Pregnancy Ultrasound Results

A transducer, a wand-shaped probe, is inserted into the vagina and pressed against the vaginal walls directly next to the uterus.Whch readng is accurate and why the difference in due dates, cud my baby just be small.

Ultrasound dating accuracy? - BabyandBump

Last period was may 2011,went for u/s at 18 weeks and showed i am due third week february 2012,was at doctors last week and u/s showng am due third week of march 2012 !!!!!!!

How accurate is ultrasound for dating pregnancy:

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