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Front Matter: Volume 10578
2018
Medical Imaging 2018: Biomedical Applications in Molecular, Structural, and Functional Imaging
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callosal fiber convergence plane computation through DTI-based divergence map
[10578-40]
10578 16
SESSION 9
CANCER
10578 18
Determining the importance of parameters extracted from multi-parametric ...
growing [10578-98] 10578 2R Automatic coronary artery lumen segmentation in computed tomography angiography using paired multi-scale 3D CNN [10578-99] Proc. of SPIE Vol. 10578 1057801-8 [10578-86]
10578 ...
doi:10.1117/12.2323952
fatcat:om4wezsn3vgr7mebecadzuy5ly
Mapping brain anatomical connectivity using white matter tractography
2010
NMR in Biomedicine
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These interconnections take place through white matter pathways. ...
Integration of the neural processes in the human brain is realized through interconnections that exist between different neural centers. ...
by the DTI-based tractography methods. ...
doi:10.1002/nbm.1579
pmid:20886567
pmcid:PMC4503207
fatcat:vxtc74ouufe35njl4wmwljldna
Edge density imaging: Mapping the anatomic embedding of the structural connectome within the white matter of the human brain
2015
NeuroImage
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(EDI), which maps the number of network edges that pass through every white matter voxel. ...
In this work, we introduce edge density imaging (EDI), which maps the number of network edges that pass through every white matter voxel. ...
Probability of crossing fibers We computed an approximation of the probability of crossing fibers, p(CF), in every voxel by subtracting the volume fraction of the first fiber (f1) and second fiber (f2) ...
doi:10.1016/j.neuroimage.2015.01.007
pmid:25592996
pmcid:PMC4340739
fatcat:j7tw7qkukrewhj4k6o6noror4u
Mathematical methods for diffusion MRI processing
2009
NeuroImage
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We focus on Diffusion Tensor Images (DTI) and Q-Ball Images (QBI). ...
In this article, we review recent mathematical models and computational methods for the processing of diffusion Magnetic Resonance Images, including state-of-the-art reconstruction of diffusion models, ...
Callosal fibers are tightly packed at the interhemispheric plane, but diverge and mingle with other fiber bundles as they progress toward the frontal lobes. ...
doi:10.1016/j.neuroimage.2008.10.054
pmid:19063977
pmcid:PMC2678879
fatcat:of2nb3nnozhp5dz2uwk5tj5bui
ConTrack: Finding the most likely pathways between brain regions using diffusion tractography
2008
Journal of Vision
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Magnetic resonance diffusion-weighted imaging coupled with fiber tractography (DFT) is the only non-invasive method for measuring white matter pathways in the living human brain. ...
The overlap from the independent ConTrack pathway estimates in the midsagittal plane through the CC is substantial and confined to the splenium ( Figure 6B ). ...
These callosal fibers are not detected with STT Huang et al., 2005; Wakana et al., 2004) , probably due to the problem of crossing fibers, as these callosal pathways likely interdigitate with the much ...
doi:10.1167/8.9.15
pmid:18831651
pmcid:PMC2696074
fatcat:u6fnn3badjbh5ex5nvljsjyd2y
The structural connectome of the human brain in agenesis of the corpus callosum
2013
NeuroImage
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In this exploratory study, the structural connectome of AgCC is mapped and compared to that of the normal human brain. ...
connectome are investigated, including summary network metrics, modularity analysis, and network consistency measures, with comparison to the normal structural connectome after simulated removal of all callosal ...
Although no participants had visible cortical malformations, the gyral and sulcal anatomy of AgCC might still contain subtle divergence from the FreeSurfer atlas, which is based on the normal human brain ...
doi:10.1016/j.neuroimage.2012.12.031
pmid:23268782
pmcid:PMC4127170
fatcat:lkyibetvqbbk7f7y7rpmqql7oq
Processing Pathways in Mental Arithmetic—Evidence from Probabilistic Fiber Tracking
2013
PLoS ONE
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The current study addressed this issue combining a reanalysis of previously published fMRI data with probabilistic fiber tracking data from an independent sample. ...
Probabilistic DTI-based fiber tracking DTI data were analyzed using the method of pathway extraction developed by Kreher et al. ...
Group maps for each region-to-region connection were computed by averaging the combined maps from all participants. ...
doi:10.1371/journal.pone.0055455
pmid:23383194
pmcid:PMC3559478
fatcat:7or3wksbsjeajn4pvlmbvnjn4m
Microscopic susceptibility anisotropy imaging
2020
Magnetic Resonance in Medicine
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A human pilot study at 3 T demonstrates proxy maps of microscopic susceptibility anisotropy unconfounded by fiber crossings and orientation dispersion as well as magnetic field direction. ...
The gradient-echo MR signal in brain white matter depends on the orientation of the fibers with respect to the external magnetic field. ...
Afterwards, we are able to perform fiber tractography 48 and quantify anatomical connectivity. 49 It is evident from Panel C that diverging, converging, and crossing pathways are ubiquitous in brain ...
doi:10.1002/mrm.28303
pmid:32378746
fatcat:apptu4wlxvgd5i6xaidrfsclmm
Bipolar disorder and neurophysiologic mechanisms
2008
Neuropsychiatric Disease and Treatment
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Recent diffusion tensor imaging (DTI) white matter fi ber tractography studies may well be superior to region of interest (ROI) DTI in understanding BD. ...
A "ventral semantic stream" has been discovered connecting the TP and OFC through the uncinate and inferior longitudinal fasciculi and the elusive TP is known to be involved in theory of mind and complex ...
In the face of criticism regarding the weaknesses in region of interest or voxel-based mapping of diffusion tensor imaging within a single plane, some of the originators of the technique of DTI advocated ...
doi:10.2147/ndt.s4329
pmid:19337455
pmcid:PMC2646644
fatcat:gc75yc5sszftlkc3veoodc54jm
Introduction to JINS Special Issue on Human Brain Connectivity in the Modern Era: Relevance to Understanding Health and Disease
2016
Journal of the International Neuropsychological Society
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Mapping human whole-brain structural networks with diffusion MRI. PLoS One, 2(7), e597. ...
Mapping the structural core of human cerebral cortex. PLoS Biology, 6(7), e159. Hagmann, P., Kurant, M., Gigandet, X., Thiran, P., Wedeen, V.J., Meuli, R., & Thiran, J.P. (2007). ...
However, current DTI-based fiber tracking algorithms are limited in their ability to resolve crossing and touching fiber bundles, which are highly prevalent fiber configurations in the human white matter ...
doi:10.1017/s1355617716000047
fatcat:f2preenihbes5ftkrxbo7tgt64
Modeling & Analysis
2003
NeuroImage
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The computation of the functional interactions through correlation coefficients (functional connectivity) or through linear regression (effective connectivity) are based on an average over many subjects ...
An asymptotic theory for convergence of Z-maps, which are commonly used in ICA of fMRI data, is unknown. Information about the rate of convergence of Z-maps is important. ...
Surfaced-based classification is also studied. ...
doi:10.1016/s1053-8119(05)70006-9
fatcat:zff2suxcofbxvetfrwfwcxi3zm
From diffusion MRI to brain connectomics
2005
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The same observation is valid for the cingulum and the callosal fibers (red and green surface) as well as CST and callosal fibers. ...
Although mathematically simple this type of MAP problem can be computationally difficult because of combinatorial explosion. ...
[3] damps vertex degree growth through vertex aging and energy limitations. ...
doi:10.5075/epfl-thesis-3230
fatcat:ws63pjm545h7joevxqku7ogmii
Diffusion Tensor Imaging of Epilepsy
2013
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Time course of normalized DTI parameters of the occipital callosal fibers. .. Time course of normalized DTI parameters of the ipsilateral fornix. ............ ...
to the manual automatisms. ...
DTI with ten repetitions (6D x 10), 30 direction DTI with one acquisition (30D x 1), and 30 direction DTI with two repetitions (30D x 2). ...
doi:10.7939/r3zg6gg35
fatcat:g2khh4gs7zaklkekfe2wvw6p4i
SHEEP AS ANIMAL MODEL IN MINIMALLY INVASIVE NEUROSURGERY IN EDEN2020
[article]
2020
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Anesthesia and in vivo MR Imaging
DTI data analysis and tractography reconstructions
Figure 1 -DTI-derived maps for a representative ovine brain Computed maps of diffusion (mm 2 /s x 10 -3 ) are shown ...
The method is based on the adaptive thresholding concept where threshold values are locally computed for each pixel. ...
doi:10.13130/trovatelli-marco_phd2020-02-06
fatcat:asfqfm3afzhx5jpfkwntbeulb4
Abstracts 20th International Science of Aphasia Conference, Rome, September 2019
2019
Stem- Spraak- en Taalpathologie
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Clusterize automatically computed hypo-intensities clusters of voxels on mean diffusivity maps. ...
Positive areas were used as seeds for DTI-fiber tracking to reconstruct fiber bundles terminating in said areas. ...
The most notable cases are illustrated in (1) Spaces between words are crucial for the automatized word counts. Hence, in the first version contractions are automatically computed as a single word. ...
doi:10.21827/5d8b76574cc25
fatcat:bqjuswjw5vaarhxtzvlq54ahhe
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