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Re: Ovarian volumes From: art fougner, md (evsono@pipeline.com) Sun May 2 11:46:42 1999 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: Jann Dolk: "Re: Sonohysterogram?" Previous message: mary shoup: "Endometriosis, PCOS, and Recurrent Pregnancy Loss Chat with Mark Perloe, MD" Maybe in reply to: Durr-e- Sabih: "Ovarian volumes" Next in thread: Dr. Ross Welch: "Re: sonogram measurements do not match @ 36 weeks" Reply: Dr. Ross Welch: "Re: sonogram measurements do not match @ 36 weeks" Doubtless with the 3D machines, we'll see another round of nomograms in the journals. Art At Sat, 1 May 1999, Terry J. DuBose wrote: > >Actually, using (D1x(D2 squared))0.523 is not cheating, but is the >original formula for a regular prolate (rotating) ellipse volume. This >was modified for biometric geometry because very few organs are smooth, >regular ellipsoids. Most tissues have some variation in the 3 diameters. > Because they are all just close estimates of the volume, you can >probably use any formula you choose, so long as you are consistent in >your methods. > >The only caution I would have is that if you are going to use >measurements and volume estimates for comparison to published tables to >determine normality, then you should use the same methodology for >measurements and formulae as the original research that produced the >table(s). If not your results may not compare favorably to the table(s). > >Peace, Terry J. DuBose, M.S., RDMS >University of Arkansas for Medical Sciences >Littel Rock, AR, USA > >On Sat, 1 May 1999 00:01:02 -0500 "Durr-e- Sabih" <dsabih@hotmail.com> >writes: >>There is another formula for a "rotating ellipse" which I think works >>for >>ovarian volume too, instead of D1xD2XD3, try only D1 (long axis) and >>D2xD2 >>(two short axes)...I guess this is cheating a little bit, but appears >>more >>convenient....any comments? >> >>Dr. Durr-e-Sabih >>Multan, Pakistan >>dsabih@hotmail.com >> -- art fougner, md SonoScan/Genetic Sciences forest hills, ny evsono@pipeline.com Next message: Jann Dolk: "Re: Sonohysterogram?" Previous message: mary shoup: "Endometriosis, PCOS, and Recurrent Pregnancy Loss Chat with Mark Perloe, MD" Maybe in reply to: Durr-e- Sabih: "Ovarian volumes" Next in thread: Dr. Ross Welch: "Re: sonogram measurements do not match @ 36 weeks" Reply: Dr. Ross Welch: "Re: sonogram measurements do not match @ 36 weeks"

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