Abstract #0569

AMU7T: a 3D qT1 and T2*w high-resolution in vivo template with refined white and gray matter parcellation dedicated to 7T spinal cord MR analyses

Arnaud Le Troter^1,2, Nilser J. Laines Medina ^1,2,3, Samira Mchinda^1,2,3, Julien Cohen-Adad⁴, and Virginie Callot^1,2,3

¹Aix Marseille Univ, CNRS, CRMBM, Marseille, France, ²APHM, CHU Timone, Pôle d’Imagerie Médicale, CEMEREM, Marseille, France, ³iLab-Spine, International Associated Laboratory, Marseille-Montreal, France, ⁴NeuroPoly Lab, Institute of Biomedical Engineering, Polytechnique Montréal, Montréal, QC, Canada

Synopsis

Keywords: Spinal Cord, Software ToolsUltra-High-Field MRI has opened new perspectives for spinal cord exploration due to improved spatial resolution and contrast. The present work proposes a dedicated 7T multimodal 3D qT1 and T2*w template and a parcellation including eight substructures within gray matter, thirty WM tracts and three inter-hemispheric ROIs, for an accurate atlas-based segmentation in the subject space. This atlas was interpolated in the 3D PAM50 space to benefit from the advanced functions for registration implemented in the SCT. A preliminary segmentation result in healthy subject gives promising perspectives for group studies.

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