Age-Related CT Morphometry of the Pediatric Clivus and Dorsum Sellae: Cross-Sectional Changes and Pneumatization Patterns

Background/Objectives: This study investigated age-related morphometric and angular changes in the dorsum sellae and clivus, and evaluated dorsum sellae pneumatization patterns in a pediatric population using computed tomography (CT).

Methods

This retrospective study included 720 pediatric subjects aged 0–18 years who underwent cranial CT. Subjects were stratified into five age groups. Four parameters were evaluated on multiplanar reformatted midsagittal images: clivus length, dorsum sellae middle thickness (ML-T), sphenoid–dorsal angle (SDA), and sellar–clival inclination angle (SCIA). Dorsum sellae pneumatization was classified into four types (Types 0–3) according to the criteria of Alpergin et al.