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Re: plotting graphs of doppler RI,cut-off values for pulsatile dFrom: DuboseTerryJ@uams.eduSat Jun 16 15:37:05 2001
Dear Dr. Nayana: The RI & SD ratios for the Umb, fetal aortic (above renals), and middle ceregral arteries are in FETAL SONOGRAPHY, W. B. Saunders Co. 1996; p. 364-369. And I have seen articles about all the different vessels you inquire about. But I do not know of any articles that looks at ratios for all of the vessels in the same population. It is interesting. If you would like, I feel sure the Editorial Advisory Board of the Ultrasound section of OBGYN.net would be receptive to you submission for review and possible publication. Have you don a search on the following?: http://www.obgyn.net/gold.asp peace, Terry J DuBose chair, EAB, Ultrasound OBGYN.net -----Original Message----- From: nparange@yahoo.com To: Multiple recipients of list ULTRASOUND Sent: 6/16/01 7:53 AM Subject: plotting graphs of doppler RI,cut-off values for pulsatile ductus venosus 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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