Normal sonographic renal length measurements in an Australian pediatric population

Peter R. Coombs, Ilona Lavender, Michelle Y.Z. Leung, Jessica C. Woods, Eldho Paul, Nathalie Webb, Michael Ditchfield

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)


Background: Reference charts depicting normal growth are important for the sonographic assessment of the pediatric kidney. Limited charts are available for clinical use in an Australian population. Objective: To retrospectively collate sonographic renal length measurements in a cohort of low-risk Australian children aged newborn to 16 years to produce a reference table and comparison with other published charts. Materials and methods: We identified consecutive pediatric patients who were at low risk for renal disease and had renal lengths measured. After exclusions, we included 941 renal lengths (male 490, female 451). We used linear regression to estimate the relationship of renal length with age, gender and side. We calculated percentile values of renal length according to age categories. Results: No statistically significant differences in mean renal length were observed between males and females, or for left and right kidneys. We tabulated reference data and provide them in a reference chart (1-, 2.5-, 5-, 10-, 50-, 90-, 97.5- and 99-percentiles). Conclusion: We calculated new reference ranges for pediatric renal length using a larger cohort than previously published, from a population with diverse ethnicity.

Original languageEnglish
Pages (from-to)1754-1761
Number of pages8
JournalPediatric Radiology
Issue number13
Publication statusPublished - Dec 2019


  • Adolescents
  • Children
  • Kidney
  • Normal references
  • Size
  • Ultrasound

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