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AxTract: Microstructure-Driven Tractography Based on the Ensemble Average Propagator [chapter]

Gabriel Girard, Rutger Fick, Maxime Descoteaux, Rachid Deriche, Demian Wassermann
2015 Lecture Notes in Computer Science  
Recent advancements in diffusion-weighted imaging (DWI) allow multi-shell acquisitions with b-values of up to 10,000 s/mm 2 in human subjects, enabling the measurement of the ensemble average propagator  ...  Tractography techniques are based on models of the DWI signal geometry without taking specific hypotheses of the WM structure.  ...  HCP funding was provided by the National Institute of Dental and Craniofacial Research, the National Institute of Mental Health, and the National Institute of Neurological Disorders and Stroke.  ... 
doi:10.1007/978-3-319-19992-4_53 fatcat:ybzawmovnzfnhlsumyuolpk46u

Quantifying brain microstructure with diffusion MRI: Theory and parameter estimation [article]

Dmitry S. Novikov, Els Fieremans, Sune N. Jespersen, Valerij G. Kiselev
2018 arXiv   pre-print
From this perspective, we view research on quantifying brain microstructure as occurring along the three major avenues.  ...  We conclude with our outlook on the future directions which can open exciting possibilities for designing quantitative markers of tissue physiology and pathology, based on methods of studying mesoscopic  ...  The coherent disorder averaging of the propagators in equation (4.1) is also the reason that the effective medium theory [24, 30] for the disorder-averaged SDE propagator (1.6) has to be further augmented  ... 
arXiv:1612.02059v2 fatcat:bqzc7kibe5gg5pkkioponedkq4