Results 11 to 20 of about 45,799 (233)
PLOS Computational Biology, 2016 Fiber tractography uses diffusion MRI to estimate the trajectory and cortical projection zones of white matter fascicles in the living human brain. There are many different tractography algorithms and each requires the user to set several parameters ...
Caiafa, César Federico +3 more
core +6 more sources
Merged Group Tractography Evaluation with Selective Automated Group Integrated Tractography (SAGIT) [PDF]
Frontiers in Neuroanatomy, 2016 Introduction: Tractography analysis in group-based studies across large populations is difficult to manage and assess. We propose Selective Automated Group Integrated Tractography (SAGIT), an automated group tractography software platform that ...
David Qixiang Chen +9 more
doaj +3 more sources
Tractography in Curvilinear Coordinates [PDF]
Frontiers in Neuroscience, 2021 Coordinate invariance of physical laws is central in physics, it grants us the freedom to express observations in coordinate systems that provide computational convenience. In the context of medical imaging there are numerous examples where departing from Cartesian to curvilinear coordinates leads to ease of visualization and simplicity, such as ...
Uzair Hussain +6 more
openaire +3 more sources
Filtered Multitensor Tractography [PDF]
IEEE Transactions on Medical Imaging, 2010 We describe a technique that uses tractography to drive the local fiber model estimation. Existing techniques use independent estimation at each voxel so there is no running knowledge of confidence in the estimated model fit. We formulate fiber tracking as recursive estimation: at each step of tracing the fiber, the current estimate is guided by those ...
James G. Malcolm +2 more
openaire +4 more sources
Tractography for an arteriovenous malformation [PDF]
Neurology, 2004 A 28-year-old woman presented with focal motor seizure involving the right upper extremity, which was well controlled with an antiepileptic agent. MRI demonstrated an arteriovenous malformation. This lesion depicted on MR angiography (figure, A) appeared to involve the sensorimotor cortices on transaxial T2-weighted MR images (figure, B; central sulcus
Kei, Yamada +3 more
openaire +2 more sources
Hierarchical Microstructure Informed Tractography [PDF]
Brain Connectivity, 2021 Background: Tractography uses diffusion magnetic resonance imaging to noninvasively infer the macroscopic pathways of white matter fibers and it is the only available technique to probe in vivo the structural connectivity of the brain. However, despite this unique and compelling ability and its wide range of possible neurological applications ...
Mario Ocampo-Pineda +6 more
openaire +3 more sources
Optic radiation fiber tractography in glioma patients based on high angular resolution diffusion imaging with compressed sensing compared with diffusion tensor imaging - initial experience. [PDF]
PLoS ONE, 2013 OBJECTIVE: Up to now, fiber tractography in the clinical routine is mostly based on diffusion tensor imaging (DTI). However, there are known drawbacks in the resolution of crossing or kissing fibers and in the vicinity of a tumor or edema.
Daniela Kuhnt +4 more
doaj +1 more source
Imaging versus electrographic connectivity in human mood-related fronto-temporal networks
Brain Stimulation, 2022 Background: The efficacy of psychiatric DBS is thought to be driven by the connectivity of stimulation targets with mood-relevant fronto-temporal networks, which is typically evaluated using diffusion-weighted tractography.
Joshua A. Adkinson +17 more
doaj +1 more source
Exploring Peritumoral Neural Tracts by Using Neurite Orientation Dispersion and Density Imaging
Frontiers in Neuroscience, 2021 Diffusion Tensor Imaging (DTI) tractography has been widely used in brain tumor surgery to ensure thorough resection and minimize functional damage.
Shin Tai Chong +14 more
doaj +1 more source