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Re: Pregnancy detected on ultrasound

From: Harvey S. Marchbein, M.D. (anonymous@obgyn.net)
Sat, 31 May 1997 22:14:28 -0500 (CDT)

At Fri, 30 May 1997, Mary wrote: >
>At what stage (conceptional weeks) can an embryo (or any evidence of
>pregnancy) be detected via ultrasound - both abdominal and transvaginal?
>
>Thanks

Hi Mary, Transvaginal sonography is better, easier (no need to fill the bladder) and can see things sooner than pelvic sonography via the abdominal route. A gestational sac can be see at 4w-4w4d after the LMP (last menstrual period), yolk sac by 5w-5w4d and fetus at 6w-6w4d with heartbeat noted 6w3d (rarely earlier) and occasionally not seen til 7w. 

--
Harvey S. Marchbein, M.D. FACOG, FACS
OBGYN.net U.S. Representative, New York
Great Neck, New York
http://www.obgyn.net/states/bios/marchbein.htm
http://www.obgyn.net/women/heroes/harveym.htm


*Note:  Opinions expressed here are for educational purpose only.
This information is not intended to supplant the need for you to
consult with your physician prior to choosing therapeutic options.



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