Technical Program

Paper Detail

Paper:	FR-AM-SS1.2
Session:	Progress on the Diffusion Tractography Problem
Time:	Friday, April 7, 09:50 - 10:10
Presentation:	Special Session Oral
Title:	Validation and Regularization in Diffusion MRI Tractography
Authors:	Jennifer Campbell; McGill University
	Peter Savadjiev; McGill University
	Kaleem Siddiqi; McGill University
	G.Bruce Pike; McGill University
Abstract:	We present a physical phantom designed for fibre tractography validation and use it to evaluate tracking algorithms that employ (a) the classic diffusion tensor model of diffusion, (b) high angular resolution reconstruction of the diffusion orientation distribution function (ODF), and (c) a regularization algorithm capable of inferring complex subvoxel fibre configurations. This work addresses four issues in diffusion MRI tractography: validation of the tracking process using ground truth, evaluation of different approaches for diffusion ODF reconstruction, coping with imaging noise, and coping with confounding subvoxel fibre configurations.

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