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Re: plotting graphs of doppler RI,cut-off values for pulsatile ductus From: udaya kumar (udaya@md2.vsnl.net.in) Sun Jun 17 20:54:30 2001 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: DuboseTerryJ@uams.edu: "Re: plotting graphs of doppler RI,cut-off values for pulsatile d" Previous message: DuboseTerryJ@uams.edu: "Re: plotting graphs of doppler RI,cut-off values for pulsatile d" 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 Next message: DuboseTerryJ@uams.edu: "Re: plotting graphs of doppler RI,cut-off values for pulsatile d" Previous message: DuboseTerryJ@uams.edu: "Re: plotting graphs of doppler RI,cut-off values for pulsatile d"

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