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The impact of hydration on renal measurements and on cortical echogenicity in children

Mooneera Peerboccus1, Nasroolla Damry, Sanjiva Pather

  • 1Radiology Department, Hôpital Universitaire des Enfants, Reine Fabiola, Avenue J.J Crocq, 1020, Brussels, Belgium, bpeerboc@ulb.ac.be.

Pediatric Radiology
|August 6, 2013
PubMed

Insights

Standardizing oral hydration before kidney ultrasounds in children significantly impacts renal measurements. This hydration improves kidney size, volume, echogenicity, and pelvic expansion, aiding in accurate diagnostic imaging.

Area of Science:

  • Pediatric Radiology
  • Medical Imaging
  • Nephrology

Background:

  • Kidney ultrasonography is a common pediatric imaging procedure.
  • Current guidelines lack specific recommendations for pre-examination hydration protocols.

Purpose of the Study:

  • To investigate the effects of standardized oral hydration on renal size, echogenicity, and pelvic dimensions in children.
  • To establish optimal hydration strategies for pediatric renal ultrasound examinations.

Main Methods:

  • Thirty-one children (7-14 years) underwent renal ultrasounds at baseline (T0) and 30 (T30) and 60 (T60) minutes post-hydration.
  • Measurements included inter-polar kidney size, renal volume, and pelvic anterior-posterior diameter.
  • Renal cortical echogenicity was assessed relative to the liver and spleen.

Main Results:

  • Significant increases in inter-polar renal size (up to 4.3%) and renal volume (up to 16.8%) were observed post-hydration.
  • Renal cortical echogenicity shifted from hypoechoic to isoechoic.
  • Pelvic expansion increased significantly with hydration, from 3.2% at T0 to 22.6% at T60.

Conclusions:

  • Oral hydration demonstrably influences key renal parameters in pediatric ultrasound.
  • Hydration leads to measurable changes in renal dimensions, echogenicity, and pelvic dimensions.
  • Standardized hydration protocols are recommended prior to pediatric renal ultrasound to optimize diagnostic accuracy.
Abstract

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