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NeuroImage, 2013 Diffusion-based tractography is an ill-posed problem, because the step-by-step reconstruction of a fibre bundle trajectory cannot afford any serious mistake in the evaluation of the local fibre orientations. Such evaluation is difficult, however, because the myriad fibres passing through a single voxel follow different directions.
Jean-Francois Mangin +2 more
exaly +4 more sources
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2021
Most existing diffusion tractography algorithms are affected by gyral bias, causing the termination of streamlines at gyral crowns instead of sulcal banks. In this paper, we propose a tractography technique, called active cortex tractography (ACT), to overcome gyral bias by enabling fiber streamlines to curve naturally into the cortex. We show that the
Ye Wu 0001 +3 more
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Most existing diffusion tractography algorithms are affected by gyral bias, causing the termination of streamlines at gyral crowns instead of sulcal banks. In this paper, we propose a tractography technique, called active cortex tractography (ACT), to overcome gyral bias by enabling fiber streamlines to curve naturally into the cortex. We show that the
Ye Wu 0001 +3 more
openaire +2 more sources
Tractography of the Median Nerve
Seminars in Musculoskeletal Radiology, 2009The median nerve is one of the most commonly affected peripheral nerves in various pathologies such as entrapment syndromes or transections. The diagnostic procedures applied in these situations are electromyography, physical examination methods, ultrasonography, and magnetic resonance imaging.
Neslihan Tasdelen, Kabakci +2 more
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Surface-Enhanced Tractography (SET)
NeuroImage, 2018 In this work, we exploit the T1 weighted image in conjunction with cortical surface boundary to improve the precision of tractography under the cortex.
Alessandro Daducci +2 more
exaly +2 more sources
2009
The validation of tractography is fundamental to the implementation of the technique as a useful biomedical tool. The technique has the potential to help in the diagnosis of patients suffering from brain injury and disease, as well as providing insights into basic neuroscience.
Hubbard, Penny L., Parker, Geoffrey J M
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The validation of tractography is fundamental to the implementation of the technique as a useful biomedical tool. The technique has the potential to help in the diagnosis of patients suffering from brain injury and disease, as well as providing insights into basic neuroscience.
Hubbard, Penny L., Parker, Geoffrey J M
openaire +1 more source
SPIE Proceedings, 2012
Fiber tracking algorithms yield valuable information for neurosurgery as well as automated diagnostic approaches. However, they have not yet arrived in the daily clinical practice. In this paper we present an open source integration of the global tractography algorithm proposed by Reisert et.al.1 into the open source Medical Imaging Interaction ...
Peter F. Neher +5 more
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Fiber tracking algorithms yield valuable information for neurosurgery as well as automated diagnostic approaches. However, they have not yet arrived in the daily clinical practice. In this paper we present an open source integration of the global tractography algorithm proposed by Reisert et.al.1 into the open source Medical Imaging Interaction ...
Peter F. Neher +5 more
openaire +1 more source
Fast Approximate Stochastic Tractography
Neuroinformatics, 2011Many different probabilistic tractography methods have been proposed in the literature to overcome the limitations of classical deterministic tractography: (i) lack of quantitative connectivity information; and (ii) robustness to noise, partial volume effects and selection of seed region.
Juan Eugenio Iglesias +3 more
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Fast Tractography Streamline Search
2021In this work, a new hierarchical approach is proposed to efficiently search for similar tractography streamlines. The proposed streamline representation enables the use of binary search trees to increase the tractography clustering speed without reducing its accuracy.
Etienne St-Onge +2 more
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From Vesalius to tractography.
Journal of neurosurgical sciences, 2015The description of an anatomical specimen may look straightforward, but it appears that it depends in fact on several intermingled factors: technical methods for conservation, dissection and vascular injection and the anatomist skills are of course important. This is especially true when the studied organ, as for instance the brain, is subject to rapid
Destrieux, Christophe +3 more
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Tractography Analysis for Electroconvulsive Therapy
2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2018Computational human head models have been used in electrophysiological studies, and they have been able to provide useful information that is unable or difficult to acquire from experimental or imaging studies. However, most of these models are purely volume conductor models that overlooked the electric excitability of axons in the white matter of the ...
Stefanie Riel +3 more
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