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Abstract #1492

Lifespan Mapping of the Human Cerebellum: Tissue Segmentation and Surface Reconstruction

Guoye Lin1,2, Junjie Zhao3, Khoi Huynh1,2, Wenjiao Lyu1,2, Sahar Ahmad1,2, and Pew‑Thian Yap1,2
1Department of Radiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, 2Biomedical Research Imaging Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, 3Department of Computer Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States

Synopsis

Keywords: White Matter, Neuroscience, Lifespan Cerebellar Segmentation, Cortical Surface Reconstruction

Motivation: The cerebellum is vital for motor, sensory, and cognitive functions, yet analyzing its development across the lifespan remains challenging due to its complex structure and age-related imaging variability. No reliable methods currently support comprehensive lifespan analysis.

Goal(s): To develop a pipeline for cerebellar tissue segmentation and cortical surface reconstruction for lifespan-wide analysis.

Approach: We trained an age-robust segmentation model on T1-weighted cerebellar images with extensive data augmentation, followed by a surface reconstruction model trained on segmentation-derived pseudo-ground truth to deform a spherical template.

Results: Our method achieves reliable cerebellar segmentation and surface reconstruction, enabling efficient lifespan-wide morphology analysis.

Impact: This work addresses the gap in lifespan cerebellar analysis by providing a reliable solution for segmentation and surface reconstruction to advance our understanding of cerebellar development.

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Keywords