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Journal of Ultrasound in Medicine, Vol 15, Issue 4 317-321, Copyright © 1996 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Doppler velocimetry of the fetal middle cerebral and renal arteries: interobserver reliability

K. Fong, M. L. Ryan, H. Cohen, K. Amankwah, A. Ohlsson, T. Myhr and M. Hannah
Department of Medical Imaging, Women's College Hospital, University of Toronto, Ontario, Canada.

Using color and pulsed Doppler ultrasonography, the interobserver reliability of measurements in the fetal circulation was evaluated in 41 pregnancies of 25 to 39 weeks' gestation. Two observers recorded flow velocity waveforms from the middle cerebral and renal arteries for measurement of peak systolic, minimum diastolic, and mean velocities, pulsatility index, and resistive index. Intraclass correlation coefficient of reliability was calculated by analysis of variance. Substantial interobserver agreement was found for pulsatility index and minimum diastolic velocity in both arteries. Therefore, these measurements have the greatest clinical applicability.


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K. W. Fong, A. Ohlsson, M. E. Hannah, S. Grisaru, J. Kingdom, H. Cohen, M. Ryan, R. Windrim, G. Foster, and K. Amankwah
Prediction of Perinatal Outcome in Fetuses Suspected to Have Intrauterine Growth Restriction: Doppler US Study of Fetal Cerebral, Renal, and Umbilical Arteries
Radiology, December 1, 1999; 213(3): 681 - 689.
[Abstract] [Full Text]


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Copyright © 1996 by the American Institute of Ultrasound in Medicine.