ULTRASOUND Messages for May, 1999: Re: microcephaly

Re: microcephaly

From: Terry J. DuBose

tjdubose@juno.com

Thu May 6 07:50:52 1999

I have been trying to convince sonographers & sonologists since 1985 that the vertical axis of the fetal cranium is the most dynamic. If there is transverse pressure reducing the BPD (dolichocephalic) then the vertical cranial diameter (VCD) is exaggerated much more than the frontalooccipal diameter (FOD or OFD, as you prefer). And if the fetus presses the vertex of its head against the uterine wall, shortening the VCD then the BPD will be exaggerated to compensate (brachycephalic).

However, few have paid much attention to the vertical diameter. I published this in the JDMS in 1985 and received the Gottesfeld Award in 1996 for that research. There is an entire chapter (8)in FETAL SONOGRAPHY devoted to the cranial biometry. The easiest way to evaluate the 3D fetal cranium is to use the 3D BPD Correction.

For more information, if you do not have FETAL SONOGRAPHY, see my Web pages at: http://www.io.com/~DuBose

Of course it can also be microcephaly. If this condition is related to the TORCH infections, then enlargement of the spleen and liver may also be present.

I find these questions fascinating... please keep us informed if you get follow-up. Thanks.

Peace, Terry J. DuBose, M.S., RDMS Chair, Ultrasound@OBGYN.net Director, Diagnostic Medical Sonography Program University of Arkansas for Medical Sciences DuBoseTerryJ@Exchange.uams.edu -- http://www.io.com/~DuBose

---- On Wed, 5 May 1999 23:59:23 -0500 "DR.JOE ANTONY" <jscan@vsnl.com> writes: >------=_NextPart_000_0015_01BE97AA.40E904C0
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>Dear Netters,
>How does one distinguish between microcephaly and engaged
>fetal head; I saw a case of a fetus of 36 weeks (FL), with BPD
>corresponding to 30 weeks, HC was about 31 weeks.
>Presentation was cephalic.
>Can the head engage early? Is this a clear case of microcephaly?
>Regards, DR.JOE ANTONY
>
>------=_NextPart_000_0015_01BE97AA.40E904C0
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><META content=text/html;charset=iso-8859-1 >http-equiv=Content-Type><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 >HTML//EN"><!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
><META content='"MSHTML 4.71.1712.3"' name=GENERATOR>
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><DIV> </DIV>
><DIV>Dear Netters,<BR>How does one distinguish between microcephaly
>and
>engaged<BR>fetal head; I saw a case of a fetus of 36 weeks (FL),
>with
>BPD<BR>corresponding to 30 weeks, HC was about 31 weeks. </DIV>
><DIV><FONT color=#000000 size=2>Presentation was >cephalic.</FONT><BR>Can the
>head engage early? Is this a clear case of microcephaly?<BR>Regards, >DR.JOE
>ANTONY<BR><BR></DIV></BODY></HTML>
>
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