Publications related to Diffusion MRI

COMMIT: Convex Optimization Modeling for Microstructure Informed Tractography

Jean-Philippe Thiran, Alessandro Daducci, Alia Lemkaddem

Tractography is a class of algorithms aiming at in vivo mapping the major neuronal pathways in the white matter from diffusion MRI data. These techniques offer a powerful tool to noninvasively investigate at the macroscopic scale the architecture of the ne ...

Institute of Electrical and Electronics Engineers2015

On evaluating the accuracy and biological plausibility of diffusion MRI tractograms

Jean-Philippe Thiran, David Paul Roger Romascano, Alessandro Daducci

One of the major limitations of diffusion MRI tractography is that the tractograms, i.e. set of fiber tracts, recovered by existing algorithms are not truly quantitative. Hence, the structural connectivity between different brain regions, a.k.a. connectomi ...

2015

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

Jean-Philippe Thiran, Yves Wiaux, Alessandro Daducci, Anna Auria Rasclosa

We propose a novel formulation to solve the problem of intra-voxel reconstruction of the fibre orientation distribution function (FOD) in each voxel of the white matter of the brain from diffusion MRI data. The majority of the state-of-the-art methods in t ...

Elsevier2015

Multicontrast connectometry: A new tool to assess cerebellum alterations in early relapsing‐remitting multiple sclerosis

Jean-Philippe Thiran, Dimitri Nestor Alice Van De Ville, David Paul Roger Romascano, Alessandro Daducci, Cristina Granziera, Djalel Eddine Meskaldji, Jonas Richiardi, Gunnar Krüger, Alexis Roche, Guillaume Bonnier, Ying-Chia Lin, Gloria Menegaz

Background: Cerebellar pathology occurs in late multiple sclerosis (MS) but little is known about cerebellar changes during early disease stages. In this study, we propose a new multicontrast “connectometry” approach to assess the structural and functional ...

Wiley-Blackwell2015

Quantitative Analysis of Myelin and Axonal Remodeling in the Uninjured Motor Network After Stroke

Jean-Philippe Thiran, Reto Meuli, Alessandro Daducci, Cristina Granziera, Djalel Eddine Meskaldji, Gunnar Krüger, Gloria Menegaz

Objectives: Contralesional brain connectivity plasticity was previously reported after stroke. This study aims at disentangling the biological mechanisms underlying connectivity plasticity in the uninjured motor network after an ischemic lesion. In particu ...

2015

Accelerated Microstructure Imaging via Convex Optimization (AMICO) in crossing fibers

Jean-Philippe Thiran, Yves Wiaux, Erick Jorge Canales Rodriguez, Alessandro Daducci, Anna Auria Rasclosa, Tim Bjørn Dyrby

Mapping the local microstructure properties of the tissue in the brain is crucial to understand any pathological condition from a biological perspective. In recent years, microstructure-imaging techniques aimed at extracting such precious information by us ...

2015

Accelerated Microstructure Imaging via Convex Optimisation for regions with multiple fibres (AMICOx)

Jean-Philippe Thiran, Yves Wiaux, Erick Jorge Canales Rodriguez, David Paul Roger Romascano, Alessandro Daducci, Anna Auria Rasclosa

This paper reviews and extends our previous work to enable fast axonal diameter mapping from diffusion MRI data in the presence of multiple fibre populations within a voxel. Most of the existing microstructure imaging techniques use non-linear algorithms t ...

2015

Advanced magnetic resonance spectroscopy and imaging techniques applied to brain development and animal models of perinatal injury

Yohan Van de Looij

Magnetic resonance spectroscopy (MRS) and magnetic resonance imaging (MRI) are widely used in the field of brain development and perinatal brain injury. Due to technical progress the magnetic field strength (B0) of MR systems has continuously increased, fa ...

Elsevier2015

Accelerated Microstructure Imaging via Convex Optimization (AMICO) from diffusion MRI data

Jean-Philippe Thiran, Erick Jorge Canales Rodriguez, Alessandro Daducci, Tim Bjørn Dyrby, Hui Zhang

Microstructure imaging from diffusion magnetic resonance (MR) data represents an invaluable tool to study non-invasively the morphology of tissues and to provide a biological insight into their microstructural organization. In recent years, a variety of bi ...

Elsevier2015

A Multi-Contrast MRI Study of Microstructural Brain Damage in Patients with Mild Cognitive Impairment

Meritxell Bach Cuadra, Reto Meuli, Alessandro Daducci, Cristina Granziera, Daniel Andreas Schmitter, Alexis Roche, Guillaume Bonnier

Objectives: The aim of this study was to investigate pathological mechanisms underlying brain tissue alterations in mild cognitive impairment (MCI) using multi-contrast 3 T magnetic resonance imaging (MRI). Methods: Forty-two MCI patients and 77 healthy co ...

Elsevier2015

Diffusion MRI

COMMIT: Convex Optimization Modeling for Microstructure Informed Tractography

On evaluating the accuracy and biological plausibility of diffusion MRI tractograms

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

Multicontrast connectometry: A new tool to assess cerebellum alterations in early relapsing‐remitting multiple sclerosis

Quantitative Analysis of Myelin and Axonal Remodeling in the Uninjured Motor Network After Stroke

Accelerated Microstructure Imaging via Convex Optimization (AMICO) in crossing fibers

Accelerated Microstructure Imaging via Convex Optimisation for regions with multiple fibres (AMICOx)

Advanced magnetic resonance spectroscopy and imaging techniques applied to brain development and animal models of perinatal injury

Accelerated Microstructure Imaging via Convex Optimization (AMICO) from diffusion MRI data

A Multi-Contrast MRI Study of Microstructural Brain Damage in Patients with Mild Cognitive Impairment

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COMMIT: Convex Optimization Modeling for Microstructure Informed Tractography

On evaluating the accuracy and biological plausibility of diffusion MRI tractograms

Structured sparsity for spatially coherent fibre orientation estimation in diffusion MRI

Accelerated Microstructure Imaging via Convex Optimization (AMICO) in crossing fibers

Accelerated Microstructure Imaging via Convex Optimisation for regions with multiple fibres (AMICOx)

Accelerated Microstructure Imaging via Convex Optimization (AMICO) from diffusion MRI data

Quantitative Analysis of Myelin and Axonal Remodeling in the Uninjured Motor Network After Stroke

Advanced magnetic resonance spectroscopy and imaging techniques applied to brain development and animal models of perinatal injury

Multicontrast connectometry: A new tool to assess cerebellum alterations in early relapsing‐remitting multiple sclerosis

A Multi-Contrast MRI Study of Microstructural Brain Damage in Patients with Mild Cognitive Impairment