Nov 1, 2021 · Abstract. Diffusion MRI has provided the neuroimaging community with a powerful tool to acquire in-vivo data sensitive to microstructural features of white matter, up to 3 orders …

Jan 28, 2022 · Fixel-based analysis (FBA) is a novel framework that addresses the shortcomings of DTI and estimates microstructural changes of individual populations of specific white matter …

Feb 3, 2025 · MRtrix3 provides a set of tools to perform various types of diffusion MRI analyses, from various forms of tractography through to next-generation group-level analyses. It is …

Nov 4, 2021 · Fixel-based analysis (FBA) and free water corrected DTI (fwcDTI) have recently emerged as useful techniques to quantify abnormalities in WM. Here, we sought to evaluate …

This tutorial explains how to perform fixel-based analysis using MRtrix commands.

Here, we used fixel-based analysis (FBA) to investigate age-related WM differences observed using DTI in a sample of 45 older and 25 younger healthy adults. Age-related FA differences …

Nov 3, 2021 · Fixel-based analysis (FBA) and free water corrected DTI (fwcDTI) have recently emerged as useful techniques to quantify abnormalities in WM. Here, we sought to evaluate …

ture have been based on DTI, which provides general information on the local orientation of white matter fibres as well as metrics describ- ing the fractional anisotropy (FA) and mean …

DTI's limited accuracy in assessing crossing fibres prompted novel methods that distinguish fibres crossing through same voxel-spaces, such as fixel-based analysis (FBA), highlighting subtle …

May 1, 2024 · We applied fixel-based analyses (FBA) to examine microscopic differences in fiber density (FD) and macroscopic changes in fiber cross-section (FC) in early stages of AD (N = …