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Fetal hydronephrosis and renal artery blood velocity
Author(s) -
Gudmundsson S.,
Neerhof M.,
Weinert S.,
Tulzer G.,
Woods D.,
Huhta J. C.
Publication year - 1991
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.1991.01060413.x
Subject(s) - medicine , hydronephrosis , renal pelvis , renal artery , fetus , ultrasound , fetal circulation , umbilical artery , obstetrics and gynaecology , doppler ultrasound , blood flow , gestational age , cardiology , uterine artery , kidney , pregnancy , radiology , urinary system , gestation , biology , placenta , genetics
The renal artery blood velocity waveform was recorded by Doppler ultrasound in 17 fetuses with hydronephrosis in the third trimester of pregnancy. The waveform was analyzed for pulsatility index and related to the degree of dilatation of the renal pelvis. The pulsatility index was found to be above the renal reference range in only five out of the total of 31 kidneys examined. No relationship was found between the degree of dilatation and pulsatility index. A slight relationship was, however, found between abnormal pulsatility index and the need for operative intervention in the neonatal period. Doppler ultrasound is a valuable tool for evaluating renal circulation, but the results suggest limited clinical value in fetuses with hydronephrosis. Copyright © 1991 International Society of Ultrasound in Obstetrics and Gynecology