Re: early fetal cardiac eco

From: DuBose, Terry (DuboseTerryJ@uams.edu)
Thu Oct 21 16:54:28 2004


Wolfgang, thanks for this information on translating video file formats from one form to another....

Kevin, are you familiar with this? Thanks, Terry

Terry J. DuBose, M.S., RDMS, FSDMS, FAIUM

Associate Professor & Director Diagnostic Medical Sonography Program University of Arkansas for Medical Sciences, CHRP 4301 West Markham St. Mail Slot #563 Little Rock, Arkansas, 72205 USA 501-686-6510 DuBoseTerryJ@UAMS.edu http://www.io.com/~dubose/ http://www.uams.edu/chrp/dms/default.asp http://www.obgyn.net/us/panel/panel.htm ---------------------------------------------------------------

--------------------------------------------------------------- -----Original Message----- --------------------------------------------------------------- From: ultrasound@obgyn.net [mailto:ultrasound@obgyn.net] On Behalf Of Wolfgang Moroder, M.D. Sent: Thursday, October 21, 2004 4:04 PM To: Multiple recipients of list ULTRASOUND Subject: Re: early fetal cardiac eco

Terry, I use at present a quite nifty freeware called AVI2MPG2 (v. 1.24 beta 13 by Brent Beyeler - beyeler@hom.com) to convert my AVI clips to MPEG with a .m1v extention. Yhe obtained files are quite compressed with a still satisfactory quality. My original videoclips are generated in a DICOM format and transferred via a local net (Ethernet) from the scanning machine (Sequoia-Acuson) to a computer. I use E-film to convert the DICOM clip to a AVI clip. Unfortunately if I set a too high grade of compression in that process the resulting clip quality turns out to be quite jaggy. That is the reason why I use AVI2MPG2. These compressed videoclips with the .m1v extension can easily be played with Quicktime v. 6.5 (Apple) or with Gate's Windows Media Player v. 9.0. See my previous post to learn how to use Quicktime which I prefer (not only because I am MAC fan since 1984)to analize videoclips. I hope to contribute in some way with this post to make it easier to play around with videoclips which to my opinion are at present the best and most complete way to convey information gathered by ultrasound scanning.

Dear greetings Wolfgang

At Wed, 20 Oct 2004, Terry J DuBose wrote:

>
>Wolfgang, I did get the three video clips and forwarded them to
OBGYN.net >for formatting for the EAB. I have not heard back from them yet... I
>will check from the office today to see what the status is. thanks,
>Terry
>
>On Wed, 20 Oct 2004 01:59:59 -0500 wolfgang.moroder@tin.it (Wolfgang
>Moroder, M.D.) writes:
>> Dear Terry
>> I have tried to send you an e-mail but it seems that the anti spam
>> devices don't allow it to go through.
>>
>> I'd like to post as an informal case three videoclips for a total
>> of
>> about 5 MB.
>>
>> The first color Doppler videclip shows the fetal heart at 12 weeks
>> and
>> that looks normal as far as it can be investigated at this stage.
>> The second and third clips are of a chromosomically normal fetus at
>> 14
>> and 16 weeks. There is clear evidence already at 14 weeks of an
>> unbalanced AV canal with a single common atrioventricular valve
>> orifice.
>> The first frames of the clip show a fairly normal three vessel
>> view.
>> There seems to be an evolution towards a more severely
>> disproportion
>> between the two ventricles and a single ventricle heart looking at
>> the
>> 16 weeks clip. The unbalanced form of AV canal is more common in
>> chromosomically normal fetuses. The pregnancy is still ongoing and
>> the
>> patient is waiting for a more conclusive scan and councelling at 20
>> weeks.
>>
>> For better viewing of the clips I suggest to load them from
>> Quicktime.
>> To my knowledge Quicktime compared to Mediaplayer has the advantage
>> to
>> allow a frame to frame vision of the videoclips using the right and
>> left
>> arrow on the computer's keeboard. The spacebar can be used as a
>> stop
>> and play command while control-L is a shortcut to make the clip
>> loop.
>> Analising color Doppler videoclips by a frame to frame method is
>> almost
>> essential because shifts in colors are very quick and can't be
>> observed
>> easyly even by a trained eye.
>>
>> If you consider this material interesting for publishing as a
>> informal
>> case I'd be very happy to send it. Please let me know how I can
>> upload
>> it to the OBGYN.NET server.
>> Best regards
>> Wolfgang
>>
>> --
>> Wolfgang Moroder, MD
>> Prenatal Unit
>> Bolzano General Hospital Italy
>>

--
Wolfgang Moroder, MD
Prenatal Unit
Bolzano General Hospital  Italy



recommended search...
Google
OBGYN.net forums endometriosis zone Web

use when must restrict search to only the ultrasound forum...
Enter search keywords:
Returns per screen: Require all keywords:

Return to  Ultrasound Forum Mail a New Message to the Forum: ultrasound@obgyn.net
Forum Administrator: terry.dubose@obgyn.net
Report Technical Problems: webmaster@obgyn.net
Last Updated: Fri Jan 2 05:22:06 2009

The American Medical Association is no longer designating CME hours for AMA Category II CME credit. However, physicians themselves may self designate learning activities as Category II CME credit hours if they feel it is of sufficient educational merit and meets the formal definitions of continuing medical education. OBGYN.net believes these interaction in this forum meets these criteria. For further information see the AMA web site.