Re: plotting graphs of doppler RI,cut-off values for pulsatile d
From: dr nayana parange (nparange@yahoo.com)
Mon Jun 18 12:06:31 2001
thank you so much dr terry,dr udaya,
i have read that excellent article,but my question was whether it is
possible to plot our RI values on graphs,like we plot our growth
graphs?are such centile charts available?
thank you so much for your valuable time,nayana
At Mon, 18 Jun 2001, DuboseTerryJ@uams.edu wrote:
>
>Dr. Nayana, et al... this message reminded me that there is a very good
>article on Doppler of the ductus venosus on OBGYN.net. See:
>http://www.obgyn.net/us/cotm/0012/ductusvenosus-figures.htm
>
>Peace, Terry J. DuBose, M.S., RDMS, APS
>Assistant Professor & Director, Diagnostic Medical Sonography Program
>CHRP, University of Arkansas for Medical Sciences
>Little Rock, Arkansas, USA
>501-686-6510
>http://www.io.com/~dubose/
>http://www.uams.edu/CHRP/dmshome.htm
>http://www.obgyn.net/us/panel/panel.htm
>
>-----Original Message-----
>From: udaya kumar [mailto:udaya@md2.vsnl.net.in]
>Sent: Sunday, June 17, 2001 8:59 PM
>To: Multiple recipients of list ULTRASOUND
>Subject: Re: plotting graphs of doppler RI,cut-off values for pulsatile
>ductus venosus
>
>Dear Nayana,
>Charts and graphs for all the ratios of all the vessels are available.
>Ductus venosus however is looked at differently . It is such a crucial link
>in fetal circulation and is always pulsatile. The Nadir (atrial systolic
>component) of the DV waveform should be well above the baseline on the same
>side as the other 2 spikes. Quiet simply, it is unidirectional flow at all
>times. Reversed flow ( atrail systole) is an Ominous sign. I report peak DV
>velocity and emphasis on the nadir.
>.Udayakumar
>
>dr nayana parange wrote:
>
>> hello!
>> I wanted to know if centile charts and graphs are available for middle
>> cerebral artery,uterine arteries,umbilical arteries,aorta,renal arteries
>> and ductus venosus.
>> I take the RI and SD RATIO of all other vessels and the peak velocity of
>> ductus velocity.how is ductus venosus actually reported?is it in
>> absoloute peak systolic velocity value,or are the two peaks measured or
>> is the reverse component measured?what is the cut off velocity for
>> calling ductus venosus pulsatile?so far,i have been just reporting
>> ductus venosus on the basis of visual impression.i thought it would be
>> nice if we could plot graphs of all these vessels in the doppler
>> report,just as we plot growth graphs during biometric assessment. please
>> help me.
>> thank you for your valuable time.yours sincerely,dr nayana,india
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