Clinically Feasible White Matter Fiber Tractography in Peritumoral Zones With Cerebral Vasogenic Edema. [PDF]
Magn Reson MedABSTRACT Purpose In diffusion MRI, vasogenic edema manifests as a major fraction of isotropic water that dilutes the anisotropic intra‐axonal portion of the signal. Many tractography algorithms mistake vasogenic edema for the white matter boundary and terminate tracking to prevent producing spurious streamlines.
Filipiak P +6 more
europepmc +2 more sources
Spatially regularized low-rank tensor approximation for accurate and fast tractography
NeuroImage, 2023 Tractography based on diffusion Magnetic Resonance Imaging (dMRI) is the prevalent approach to the in vivo delineation of white matter tracts in the human brain.
Johannes Gruen +2 more
doaj +1 more source
Diffusion MRI fiber tractography of the brain [PDF]
NMR in Biomedicine, 2017 The ability of fiber tractography to delineate non‐invasively the white matter fiber pathways of the brain raises possibilities for clinical applications and offers enormous potential for neuroscience. In the last decade, fiber tracking has become the method of choice to investigate quantitative MRI parameters in specific bundles of white matter.
Ben Jeurissen +3 more
openaire +3 more sources
Improving Fiber Alignment in HARDI by Combining Contextual PDE Flow with Constrained Spherical Deconvolution. [PDF]
PLoS ONE, 2015 We propose two strategies to improve the quality of tractography results computed from diffusion weighted magnetic resonance imaging (DW-MRI) data.
J M Portegies +5 more
doaj +1 more source
Seeing More by Showing Less: Orientation-Dependent Transparency Rendering for Fiber Tractography Visualization. [PDF]
PLoS ONE, 2015 Fiber tractography plays an important role in exploring the architectural organization of fiber trajectories, both in fundamental neuroscience and in clinical applications.
Chantal M W Tax +7 more
doaj +1 more source
Reconstruction of white matter tracts via repeated deterministic streamline tracking--initial experience. [PDF]
PLoS ONE, 2013 Diffusion Tensor Imaging (DTI) and fiber tractography are established methods to reconstruct major white matter tracts in the human brain in-vivo. Particularly in the context of neurosurgical procedures, reliable information about the course of fiber ...
Miriam H A Bauer +7 more
doaj +1 more source
Fuzzy Fibers: Uncertainty in dMRI Tractography [PDF]
, 2014 Fiber tracking based on diffusion weighted Magnetic Resonance Imaging (dMRI) allows for noninvasive reconstruction of fiber bundles in the human brain. In this chapter, we discuss sources of error and uncertainty in this technique, and review strategies that afford a more reliable interpretation of the results.
Schultz, Thomas +3 more
openaire +3 more sources
Motor Evoked Potentials Improve Targeting in Deep Brain Stimulation Surgery
Neuromodulation: Technology at the Neural Interface, EarlyView., 2021 Abstract Objectives One of the main challenges posed by the surgical deep brain stimulation (DBS) procedure is the successful targeting of the structures of interest and avoidance of side effects, especially in asleep surgery. Here, intraoperative motor evoked potentials (MEPs) might serve as tool to identify the pyramidal tract.
Petyo Nikolov +7 more
wiley +1 more source
Beyond crossing fibers: Bootstrap probabilistic tractography using complex subvoxel fiber geometries
Frontiers in Neurology, 2014 Diffusion magnetic resonance imaging fiber tractography is a powerful tool for investigating human white matter connectivity in vivo. However, it is prone to false positive and false negative results, making interpretation of the tractography result ...
Jennifer S.W. Campbell +5 more
doaj +1 more source
3D fiber tractography with susceptibility tensor imaging [PDF]
NeuroImage, 2012 Gradient-echo MRI has revealed anisotropic magnetic susceptibility in the brain white matter. This magnetic susceptibility anisotropy can be measured and characterized with susceptibility tensor imaging (STI). In this study, a method of fiber tractography based on STI is proposed and demonstrated in the mouse brain.
Chunlei Liu 0004 +4 more
openaire +2 more sources