Results 11 to 20 of about 21,775 (214)
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
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NeuroImage: Clinical, 2023 Detection of microstructural white matter injury in traumatic brain injury (TBI) requires specialised imaging methods, of which diffusion tensor imaging (DTI) has been extensively studied.
Jussi Tallus +5 more
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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
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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
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Diffusion MRI and anatomic tracing in the same brain reveal common failure modes of tractography
NeuroImage, 2021 Anatomic tracing is recognized as a critical source of knowledge on brain circuitry that can be used to assess the accuracy of diffusion MRI (dMRI) tractography.
Giorgia Grisot +2 more
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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
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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
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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
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NeuroImage: Clinical, 2022 Huntington’s disease (HD) is a neurodegenerative disorder characterized by motor, psychiatric, and cognitive symptoms. Due to its diverse manifestations, the scientific community has long recognized the need for sensitive, objective, individualized, and ...
Jessica V. Barrios-Martinez +7 more
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Parallel Transport Tractography
IEEE Transactions on Medical Imaging, 2021 Tractography is an important technique that allows the in vivo reconstruction of structural connections in the brain using diffusion MRI. Although tracking algorithms have improved during the last two decades, results of validation studies and international challenges warn about the reliability of tractography and point out the need for improved ...
Shi, Yonggang, Aydogan, Baran
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