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Published on: March 11, 2016
Normal sonographic renal length measurements in an Australian pediatric population
Peter R Coombs1,2, Ilona Lavender3, Michelle Y Z Leung4
1Ultrasound, Monash Imaging, Monash Children's Hospital, Monash Health, 246 Clayton Road, Clayton, 3168, Australia. Peter.Coombs@monash.edu.
Insights
New reference ranges for pediatric kidney length in Australian children have been established. This study provides crucial data for accurate sonographic assessment in this population.
Area of Science:
- Pediatric Nephrology
- Medical Imaging
- Growth Monitoring
Background:
- Accurate sonographic assessment of pediatric kidney growth is essential.
- Existing reference charts are limited for the Australian population.
Purpose of the Study:
- To create a reference table for pediatric renal length in Australian children.
- To compare these measurements with existing international charts.
Main Methods:
- Retrospective analysis of 941 sonographic renal length measurements from low-risk Australian children (newborn to 16 years).
- Linear regression used to correlate renal length with age, gender, and side.
- Percentile values calculated for age-specific reference ranges.
Main Results:
- No significant differences in mean renal length between genders or sides.
- Comprehensive reference data tabulated and presented in percentile charts (1st to 99th).
Conclusions:
- New, robust reference ranges for pediatric renal length were developed.
- These ranges are based on a larger, ethnically diverse Australian cohort.
- The findings support improved clinical assessment and diagnosis.
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.
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