Related Experiment Videos
[Ultrasonic kidney size measurement. 1. In infants and children]
1Department of Urology, Toho University School of Medicine.
Insights
Kidney length in children up to 12 years correlates positively with age, height, and weight. Ultrasonography revealed no significant differences between sexes or right/left kidneys in length and thickness.
Area of Science:
- Pediatric Nephrology
- Medical Imaging
- Human Growth and Development
Context:
- Accurate assessment of normal kidney size is crucial for diagnosing pediatric renal conditions.
- Establishing normative data for kidney dimensions in children is essential for growth monitoring.
- Real-time ultrasonography provides a non-invasive method for evaluating pediatric kidney morphology.
Purpose:
- To establish normative data for kidney length in children up to 12 years of age using ultrasonography.
- To investigate the correlation between kidney length and anthropometric parameters (age, height, body weight) in pediatric populations.
- To determine if significant differences exist in kidney length and thickness between sexes and between right and left kidneys in children.
Summary:
- Kidney length in 126 males and 101 females up to 12 years was measured using real-time sector ultrasonography.
- Kidney length demonstrated strong positive correlations with age (r=0.864), height (r=0.879), and body weight (r=0.878).
- No statistically significant differences in kidney length or thickness were observed between sexes or between the right and left kidneys.
Impact:
- Provides valuable reference data for pediatricians and sonographers to assess normal kidney growth.
- Facilitates early detection of renal abnormalities by establishing expected kidney dimensions.
- Supports the use of ultrasonography as a reliable tool for pediatric kidney evaluation.
Abstract:
Ultrasonography in a sector scanner at real time was performed on the normal kidneys of 126 males and 101 females up to 12 years of age including infants. The growth of the kidneys was well correlated with the age, height and body weight, but the following findings of the kidney length were obtained when the male and female kidneys were measured in a comprehensive manner. 1) y (mm) = 2.987 X age + 55.029 with 0.864 correlation coefficient and less than 1% risk rate showed a positive correlation with the age. 2) y (mm) = 0.407 X height + 28.045 with 0.879 correlation coefficient and less than 1% risk rate showed a positive correlation with the height. 3) y (mm) = 0.949 X body weight + 50.904 with 0.878 correlation coefficient and less than 1% risk rate showed a positive correlation with the body weight. No difference was recognized between both sexes and the right and left kidneys of infants and school students in their kidney length and thickness.