Tracking the Cortico-Spinal Tract from Low Spatial and Angular Resolution Diffusion MRI

Aymeric Stamm 1, * Olivier Commowick 1 Patrick Pérez 2 Christian Barillot 1
* Corresponding author
1 VisAGeS - Vision, Action et Gestion d'informations en Santé
INSERM - Institut National de la Santé et de la Recherche Médicale : U746, Inria Rennes – Bretagne Atlantique , IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE
2 Technicolor [Cesson Sévigné]
Abstract : In this work, we present a pipeline to reconstruct the corticospinal tract (CST) that connects the spinal cord to the motor cortex. The proposed method combines a new geometry-based multi-compartment diffusion model coined Diffusion Directions Imaging and a new adaptive multi-modal particle filter for tractography. The DTI Tractography challenge proposes to test our methods in the context of neurosurgical planning of tumor removal, where very low spatial and angular resolution diffusion data is available due to severe acquisition time constraints. We took up the challenge and present our reconstructed CSTs derived from a single-shell acquisition scheme at b = 1000 s/mm2 with only 20 or 30 diffusion gradients (low angular resolution) and with images of 5 mm slice thickness (low spatial resolution).
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Aymeric Stamm, Olivier Commowick, Patrick Pérez, Christian Barillot. Tracking the Cortico-Spinal Tract from Low Spatial and Angular Resolution Diffusion MRI. MICCAI 2013 DTI Tractography Challenge on Peritumoral White Matter Anatomy for Neurosurgical Decision-Making, Sep 2013, Japan. pp.43-53. ⟨inserm-00849274⟩

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