Volumetric Morphometric Analysis of Posterior Fossa Structures Following Posterior Fossa Decompression with Superficial Durotomy in Chiari I Malformation

Background/Objectives: Posterior fossa decompression (PFD) with superficial durotomy is used in Chiari I malformation to limit the CSF-related complications of complete durotomy and duraplasty, but quantitative volumetric evidence has relied on linear measurements, modest cohorts, and heterogeneous methods. We applied a fully automated deep-learning segmentation pipeline to characterize multi-structure volumetric change after PFD with superficial durotomy.