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Article
Open AccessBiomarkers of Age-Related Frailty and Frailty Related to Diseases: An Exploratory, Cross-Sectional Analysis from the MAPT Study
Frailty may in most cases result from two main causes: the aging process (age-related frailty) and diseases (evolving chronic conditions or acute medical illnesses — disease-related frailty). The biological de...
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Chapter and Conference Paper
Identification of U-Bundles Based on Sulcus Morphology
It is a fact that the brain cortical folding pattern morphology is specific to each human being. Neuroanatomists think that the folding pattern is strongly related to brain connectivity [1]. As each folding varia...
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Article
A framework based on sulcal constraints to align preterm, infant and adult human brain images acquired in vivo and post mortem
Robust spatial alignment of post mortem data and in vivo MRI acquisitions from different ages, especially from the early developmental stages, into standard spaces is still a bottleneck hampering easy comparis...
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Article
Physical Activity and Changes in White Matter Hyperintensities over Three Years
Since physical activity (PA) has demonstrated benefits for cardiovascular health, it is possible to hypothesize that higher or increasing PA slows the progression of white matter hyperintensities (WMH). We inv...
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Article
Open AccessOptogenetic Tractography for anatomo-functional characterization of cortico-subcortical neural circuits in non-human primates
Dissecting neural circuitry in non-human primates (NHP) is crucial to identify potential neuromodulation anatomical targets for the treatment of pharmacoresistant neuropsychiatric diseases by electrical neurom...
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Article
Association Between Red Blood Cells Omega-3 Polyunsaturated Fatty Acids and White Matter Hyperintensities: The MAPT Study
The association between circulating biomarkers of red blood cells (RBC) omega-3 polyunsaturated fatty acids (PUFAs) and cerebral white matter hyperintensities (WMH) on the brain MRI remains yet unclear. We inv...
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Article
Linking morphological and functional variability in hand movement and silent reading
It is generally accepted in neuroscience that anatomy and function go hand in hand. Accordingly, a local morphological variability could lead to a corresponding functional variability. In this study, we tested...
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Article
Uncinate fasciculus fiber tracking in mesial temporal lobe epilepsy. Initial findings
In temporal lobe epilepsy (TLE) due to hippocampal sclerosis (HS), ictal discharge spread to the frontal and insulo-perisylvian cortex is commonly observed. The implication of white matter pathways in this pro...
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Chapter and Conference Paper
Automatic Inference of Sulcus Patterns Using 3D Moment Invariants
The goal of this work is the automatic inference of frequent patterns of the cortical sulci, namely patterns that can be observed only for a subset of the population. The sulci are detected and identified usin...
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Chapter and Conference Paper
Real-Time MR Diffusion Tensor and Q-Ball Imaging Using Kalman Filtering
Magnetic resonance diffusion imaging (dMRI) has become an established research tool for the investigation of tissue structure and orientation. In this paper, we present a method for real time processing of dif...
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Chapter and Conference Paper
MR Diffusion-Based Inference of a Fiber Bundle Model from a Population of Subjects
This paper proposes a method to infer a high level model of the white matter organization from a population of subjects using MR diffusion imaging. This method takes as input for each subject a set of trajecto...
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Chapter and Conference Paper
Anatomically Constrained Surface Parameterization for Cortical Localization
We present here a method that aims at defining a surface-based coordinate system on the cortical surface. Such a system is needed for both cortical localization and intersubject matching in the framework of ne...
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Chapter and Conference Paper
Fiber Tracking in q-Ball Fields Using Regularized Particle Trajectories
Most of the approaches dedicated to fiber tracking from diffusion-weighted MR data rely on a tensor model. However, the tensor model can only resolve a single fiber orientation within each imaging voxel. New e...
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Chapter and Conference Paper
3D Moment Invariant Based Morphometry
This paper advocates the use of shape descriptors based on moments of 3D coordinates for morphometry of the cortical sulci. These descriptors, which have been introduced more than a decade ago, are invariant r...
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Chapter and Conference Paper
Object-Based Strategy for Morphometry of the Cerebral Cortex
Most of the approaches dedicated to automatic morphometry rely on a point-by-point strategy based on war** each brain towards a reference coordinate system. In this paper, we describe an alternative object-b...
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Chapter and Conference Paper
Two-Stage Alignment of fMRI Time Series Using the Experiment Profile to Discard Activation-Related Bias
In this paper, we show that the standard point of view of the neuroimaging community about fMRI time series alignment should be revisited to overcome the bias induced by activations. We propose to perform a tw...
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Chapter and Conference Paper
Gyral Parcellation of the Cortical Surface Using Geodesic Voronoï Diagrams
In this paper, we propose a generic automatic approach for the parcellation of the cortical surface into labelled gyri. These gyri are defined from a set of pairs of sulci selected by the user. The selected su...
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Chapter and Conference Paper
A Spin Glass Based Framework to Untangle Fiber Crossing in MR Diffusion Based Tracking
We propose a general approach to the reconstruction of brain white matter geometry from diffusion-weighted data. This approach is based on an inverse problem framework. The optimal geometry corresponds to the ...
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Article
Laser-based validation of GLONASS orbits by short-arc technique
The International GLONASS Experiment (IGEX-98) was carried out between 19 October 1998 and 19 April 1999. Among several objectives was the precise orbit determination of GPS and GLONASS satellites and its val...
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Chapter and Conference Paper
A Mean Curvature Based Primal Sketch to Study the Cortical Folding Process from Antenatal to Adult Brain
In this paper, we propose a new representation of the cortical surface that may be used to study the cortex folding process and to recover foetus sulcal roots usually burried in the depth of adult brains. This...
