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Nomograms of total renal volume, urinary bladder volume and bladder wall thickness index in 3,376 children with a

Vivian Yee-fong Leung1, Winnie Chiu-wing Chu, Chung-kwong Yeung

  • 1Department of Diagnostic Radiology and Organ Imaging, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong.

Pediatric Radiology
|December 16, 2006
PubMed

Insights

This study presents new nomograms for total renal volume, bladder volume index (BVI), and bladder volume wall thickness index (BVWI) in children. These ultrasound-based references aid in assessing bladder dysfunction noninvasively.

Area of Science:

  • Pediatric Urology
  • Medical Imaging
  • Diagnostic Sonography

Background:

  • Urinary bladder volume index (BVI) and bladder volume wall thickness index (BVWI) correlate with urodynamic studies in children with bladder dysfunction.
  • Previous studies indicated BVI and BVWI as useful indicators in children with enuresis and urinary tract infections.
  • This research expands on prior work by including a wider age range of normal pediatric subjects.

Purpose of the Study:

  • To develop nomograms for total renal volume, maximum BVI, and BVWI.
  • To establish reference ranges for a Chinese pediatric population from birth through adolescence.
  • To provide standardized ultrasound-based metrics for pediatric urinary tract assessment.

Main Methods:

  • A standardized sonography protocol was applied to consecutive pediatric subjects with normal urinary tracts.
  • Data on total renal volume, BVI, and BVWI were collected.
  • Nomograms were constructed using the collected data.

Main Results:

  • Nomograms for total renal volume, BVI, and BVWI were successfully created, utilizing data from 3,376 pediatric subjects.
  • All measured parameters demonstrated a consistent increase with age.
  • The study established age-specific reference ranges for these key urinary tract metrics.

Conclusions:

  • The developed nomograms for total renal volume, BVI, and BVWI serve as valuable references.
  • These noninvasive sonographic tools can aid in the study of bladder dysfunction in children.
  • The findings support the use of dynamic sonography for functional assessment in pediatric urology.
Abstract

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