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Re: PI umbilical cord doppler From: Dr Fazeel uz Zaman (fazeel@atd.hazara.net.pk) Sun Mar 25 13:02:11 2001 Messages sorted by: [ date ][ thread ][ subject ][ author ] Next message: David Hutchon: "Re: Risk ratio , likelihood and EIF, Nyberg and Huggon definitions" Previous message: Terry J DuBose: "Re: PI umbilical cord doppler" Maybe in reply to: Debbie Levesque: "PI umbilical cord doppler" Next in thread: Allen Worrall: "Re: PI umbilical cord doppler" What is simple AB ratio?...........(procedure and significance) thanks in advance......Dr. Fazeel Daniel Margulies wrote: > I am using Doppler in OB since 1989 > Don't feel that any index is better than other. > The patency and sufficiency of the placenta ( that is what you interrogate > when doing umbilical doppler) is not change by little difference in a > number. > When You see pathology on the placenta the diastolic flow is low, there is > an increase in the pulsatilitiy there is a change in the waveform with a > thinner and sharper form over the peak sistole. There is no difference > between IR 0.87 and 0.81. Remember the physiologic changes on the fetus. > Breathing, etc.. There is a more bigger diference between healthy and sick > placentas. Donīt forget the simple AB ratio which is simpler and absolutely > the some as de RI . Remember You are using the same number in the > formula...... > -------------------------------- > -------------------------------- > -------------------------------- Next message: David Hutchon: "Re: Risk ratio , likelihood and EIF, Nyberg and Huggon definitions" Previous message: Terry J DuBose: "Re: PI umbilical cord doppler" Maybe in reply to: Debbie Levesque: "PI umbilical cord doppler" Next in thread: Allen Worrall: "Re: PI umbilical cord doppler"

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