Guillaume Theaud

High-frequency longitudinal white matter diffusion- & myelin-based MRI database: reliability and variability

The paper evaluates the reliability and variability of diffusion- and myelin-based MRI measurements across multiple sessions and fiber populations, finding moderate to high reliability for diffusion measures and bundle-dependent variability.

TractoInferno: A large-scale, open-source, multi-site database for machine learning dMRI tractography

TractoInferno provides a large-scale, multi-site database for benchmarking machine learning tractography methods using standardized data and evaluation protocols.

Processing the diffusion-weighted magnetic resonance imaging of the PING dataset

This paper processes diffusion-weighted MRI data from the PING dataset to improve connectomic analysis through advanced diffusion metrics and multimodal integration.

Diffusion MRI free water is a sensitive marker of age-related changes in the cingulum

This study shows that free water elimination improves the detection of age-related cingulum changes linked to verbal fluency decline in elderly individuals.

Bundle-specific associations between white matter microstructure and Aβ and tau pathology at their connecting cortical endpoints in older adults at risk of Alzheimer's disease

The paper examines associations between white matter microstructure and Aβ/tau pathology in specific brain bundles in at-risk older adults, finding diffusion metrics linked to Aβ and tau levels at cortical endpoints.

TractoFlow-ABS (Atlas-Based Segmentation)

TractoFlow-ABS improves tractography in pathological brains by using an atlas-based segmentation approach to avoid white matter mask holes caused by lesions.

TractoFlow: A robust, efficient and reproducible diffusion MRI pipeline leveraging Nextflow & Singularity

TractoFlow is a diffusion MRI pipeline that ensures reproducibility and efficiency using Nextflow and Singularity, achieving high reproducibility and processing large datasets quickly.

Tractostorm: Rater reproducibility assessment in tractography dissection of the pyramidal tract

This study assesses the reproducibility of manual segmentation of the pyramidal tract in diffusion MRI tractography across experts and non-experts, finding voxel-wise measures more reproducible than streamline-wise ones.

Limits to anatomical accuracy of diffusion tractography using modern approaches

This study evaluates modern diffusion tractography methods using a standardized challenge, finding no significant improvement in anatomical accuracy despite methodological advances.