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Related Experiment Videos

Renal resistive indices in children

A Vade1, P Subbaiah, C L Kalbhen

  • 1Department of Radiology, Loyola University Medical Center, Maywood, Illinois 60153.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|November 1, 1993
PubMed
Summary

Renal vascular reference intervals (RIs) were established in 177 children. Renal RIs are higher in children up to 10 years compared to adults, showing age dependency.

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Area of Science:

  • Pediatric Nephrology
  • Vascular Imaging
  • Diagnostic Reference Standards

Background:

  • Establishing age-specific reference intervals (RIs) for renal vascular parameters is crucial for accurate pediatric diagnosis.
  • Previous studies have not comprehensively defined renal vascular RIs in a large cohort of healthy children.
  • Understanding age-related variations in renal vascularity is essential for interpreting diagnostic imaging findings.

Purpose of the Study:

  • To establish normative renal vascular reference intervals (RIs) in a pediatric population.
  • To investigate the age dependency of renal vascular RIs in children.
  • To compare pediatric renal vascular RIs with those established for adult populations.

Main Methods:

  • Retrospective analysis of Doppler ultrasound data from 177 children with normal kidney function.

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  • Calculation of renal vascular resistance index (RI) using established sonographic techniques.
  • Statistical analysis to determine age-specific RIs and compare pediatric data with adult norms.

    • Main Results:

    • Normative renal vascular RIs were successfully established for 177 healthy children.
    • A significant age dependency of renal vascular RIs was observed in the pediatric cohort.
    • Renal vascular RIs were found to be consistently higher in children up to 10 years of age compared to adult reference values.

    Conclusions:

    • This study provides essential age-specific reference intervals for renal vascular resistance in children.
    • Renal vascularity in children exhibits distinct age-related patterns, differing from adult physiology.
    • These findings will aid clinicians in the accurate interpretation of renal vascular ultrasound in pediatric patients.