Age-Specific Biometric Ratios of the Posterior Fossa in Pediatric Neuroimaging: Establishing Normative Reference Values.

Key Points

• The aim is to establish age-specific normative reference values for biometric ratios of the posterior fossa in children.
• Measured posterior fossa parameters in a pediatric population
• Compared ratios across age groups and between genders
• Analyzed significant differences and stability of ratios over time
• All posterior fossa parameters, except APD-V, were significantly higher in boys
• The APD-P/APD-V ratio increases with age (mean 0.77 ± 0.09)
• The H-V/APD-P ratio declines from ~2.30 to ~2.11
• The APD-P/APD-MP ratio remains stable at ~1.91