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Journal of Ultrasound in Medicine, Vol 8, Issue 3 135-141, Copyright © 1989 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

Renal blood flow pattern by noninvasive Doppler ultrasound in normal children and acute renal failure patients

S. N. Wong, R. N. Lo and E. C. Yu
University Paediatric Unit, Queen Mary Hospital, Hong Kong.

A pilot study of the Doppler renal arterial flow pattern was done in a group of 38 normal children, including 11 neonates age 2 weeks or less, 10 infants age 2 weeks to 1 year, and 17 children age 1 year and over. The appearance time, acceleration time, end-diastolic to peak-systolic velocity ratio (d/S), and diastolic to systolic flow ratio (A2/A1) increased with age. Another four patients with acute renal failure showed a characteristic absence of blood flow in the whole or late-diastolic phase. Diastolic flow reappeared with recovery. Doppler renal arterial flow pattern may be a noninvasive investigation of diagnostic and prognostic value.


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