Re: PREGNANCY: ultrasound accuracy
From: Samir F Abdel Aziz, MD (anonymous@obgyn.net)
Tue, 21 Jul 2009 15:18:08 -0500 (CDT)
Message posted on Samir F Abdel Aziz, MD behalf by: Hope Waltman,
Fibroids and Women’s Health Forum Moderator
There is no test accurate 100% and with ultrasound errors +/-5 days
expected during the first 10 weeks; 1week between 10-20 weeks ;2weeks
between 20-30 weeks and 3weeks between 30-40 weeks.
--
Samir F Abdel Aziz, MD
Professor.Ob.Gyn
President ,editor-in-chief http://www.arabicobgyn.net
http://www.obgyn.net/displayarticle.asp?page=/bibliography/aziz
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At Mon, 20 Jul 2009, sherbear411 wrote:
>
>I had an abdominal ultrasound on friday at what I thought I should have
>been at least 7wks since I chart my cycles. The ultrasound was done
>because of early spotting, early dating and cause I just had a missed
>miscarriage in april. The ultrasounds average on the baby was only
>6wk2d, which is impossible according to my chart, but with a pretty good
>heart beat at 131bpm. I'm just wondering how far off can the ultrasound
>machine be? The tech was pretty sure that it was accurate. The quality
>was very clear which was surprising to me since I thought you were
>suppose to have transvaginal ultrasounds at this point an with the
>abdominal have a full bladder, which I had just emptied prior to the
>ultrasound. Thanks for your help.
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