title: Renal blood flow pattern by noninvasive Doppler ultrasound in normal children and acute renal failure patients.
abstract: 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.
authors.affiliation: University Paediatric Unit, Queen Mary Hospital, Hong Kong.
authors.forename: S N
authors.initials: SN
authors.lastname: Wong
authors.forename: R N
authors.initials: RN
authors.lastname: Lo
authors.forename: E C
authors.initials: EC
authors.lastname: Yu
mesh_terms: D058186:Acute Kidney Injury / Q000503:physiopathology*; D001783:Blood Flow Velocity; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D010865:Pilot Projects; D011379:Prognosis; D012077:Renal Artery / Q000503:physiopathology; D012079:Renal Circulation; D014463:Ultrasonography