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An Integrated Framework for High Angular Resolution Diffusion Imaging–Based Investigation of Structural Connectivity

Luke Bloy, Madhura Ingalhalikar, Nematollah K. Batmanghelich, Robert T. Schultz, Timothy P.L. Roberts, Ragini Verma
2012 Brain Connectivity  
This article presents an integrated structural connectivity framework designed around such an interpretation.  ...  The framework provides three measures to characterize the structural connectivity of a subject: (1) the structural connectivity matrix describing the proportion of connections between pairs of nodes, (  ...  Roberts would like to thank the Oberkircher Family for the Oberkircher Family Chair in Pediatric Radiology.  ... 
doi:10.1089/brain.2011.0070 pmid:22500705 pmcid:PMC3380149 fatcat:runrlrg2krax5hdjk7vthcciuy

Optimization of macaque brain DMRI connectome by neuron tracing and myelin stain data

Tuo Zhang, Jun Kong, Ke Jing, Hanbo Chen, Xi Jiang, Longchuan Li, Lei Guo, Jianfeng Lu, Xiaoping Hu, Tianming Liu
2018 Computerized Medical Imaging and Graphics  
Accurate assessment of connectional anatomy of primate brains can be an important avenue to better understand the structural and functional organization of brains.  ...  Our results suggest that this integrative framework could advance the mapping accuracy of dMRI based connections and axonal pathways, and demonstrate the prospect of the proposed framework in constructing  ...  T Zhang was supported by NSFC 31500798, NSFC 31671005 and the fundamental research funds for the central universities. J Kong was supported by NIH K25CA181503.  ... 
doi:10.1016/j.compmedimag.2018.06.001 pmid:30170273 pmcid:PMC6176488 fatcat:qqauh2vupzejdahskssdth24rm

D-BRAIN: Anatomically Accurate Simulated Diffusion MRI Brain Data

Daniele Perrone, Ben Jeurissen, Jan Aelterman, Timo Roine, Jan Sijbers, Aleksandra Pizurica, Alexander Leemans, Wilfried Philips, Christophe Lenglet
2016 PLoS ONE  
angular resolution.  ...  The proposed framework enables reliable and quantitative evaluation of DW-MR image processing and FT algorithms at the level of large-scale WM structures.  ...  that support the NIH Blueprint for Neuroscience Research; and by the McDonnell Center for Systems Neuroscience at Washington University for providing part of the data.  ... 
doi:10.1371/journal.pone.0149778 pmid:26930054 pmcid:PMC4773122 fatcat:5o5k6goiqbg5nfvlrmkav7qsf4

TDF-TRACT: Probabilistic tractography using the tensor distribution function

J.J. GadElkarim, L. Zhan, S.L. Yang, A.F. Zhang, L. Altshuler, M. Lamar, O. Ajilore, P.M. Thompson, A. Kumar, A. Leow
2011 2011 IEEE International Symposium on Biomedical Imaging: From Nano to Macro  
High angular resolution diffusion imaging (HARDI) can potentially resolve more complex diffusion geometries and thus disentangle confounds from fiber incoherence and partial voluming when assessing fiber  ...  Fractional anisotropy (FA), a widely used measure of fiber integrity based on diffusion tensor imaging (DTI), is theoretically confounded by several other quantities including the degree of fiber orientation  ...  Seven independent gradients are mathematically sufficient to determine the diffusion tensor, but MRI protocols with higher angular and radial resolutions, such as high-angular resolution diffusion imaging  ... 
doi:10.1109/isbi.2011.5872529 dblp:conf/isbi/GadElkarimZYZALATKL11 fatcat:ok7o5rubr5bfbejov3qk7pmaqy

Brain Structural Connectivity Network Alterations in Insomnia Disorder Reveal a Central Role of the Right Angular Gyrus

Yishul Wei, Tom Bresser, Rick Wassing, Diederick Stoffers, Eus J.W. Van Someren, Jessica C. Foster-Dingley
2019 NeuroImage: Clinical  
The findings demonstrate that the right angular gyrus is a hub of enhanced structural connectivity in ID.  ...  Diffusion-weighted images and T1-weighed images were acquired in 51 people diagnosed with ID (21-69 years of age, 37 female) and 48 matched controls without sleep complaints (22-70 years of age, 31 female  ...  This study utilized high angular resolution DWI with 71 diffusion gradient directions, which could lead to higher sensitivity to detect other group differences.  ... 
doi:10.1016/j.nicl.2019.102019 pmid:31678910 pmcid:PMC6839281 fatcat:wwymdd3et5h4xpsahmhgg37hyu

White matter integrity measured by fractional anisotropy correlates poorly with actual individual fiber anisotropy

Alex D. Leow, Liang Zhan, Siwei Zhu, Nathan Hageman, Ming-Chang Chiang, Marina Barysheva, Arthur W. Toga, Katie L. McMahon, Greig I. de Zubicaray, Margaret J. Wright, Paul M. Thompson
2009 2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro  
High-angular resolution diffusion imaging (HARDI) can resolve more complex diffusion geometries than standard DTI, including fibers crossing or mixing.  ...  Fractional anisotropy (FA), a very widely used measure of fiber integrity based on diffusion tensor imaging (DTI), is a problematic concept as it is influenced by several quantities including the number  ...  Seven independent gradients are mathematically sufficient to determine the diffusion tensor, but MRI protocols with higher angular and radial resolutions, such as the high angular resolution diffusion  ... 
doi:10.1109/isbi.2009.5193124 dblp:conf/isbi/LeowZZHCBTMZWT09 fatcat:c4z5rc5d6rbi5d5uo3ksve6pva

7T multi-shell hybrid diffusion imaging (HYDI) for mapping brain connectivity in mice

Madelaine Daianu, Neda Jahanshad, Julio E. Villalon-Reina, Gautam Prasad, Russell E. Jacobs, Samuel Barnes, Berislav V. Zlokovic, Axel Montagne, Paul M. Thompson, Sébastien Ourselin, Martin A. Styner
2015 Medical Imaging 2015: Image Processing  
High angular resolution diffusion imaging (HARDI) samples diffusivity at a large number of spherical angles, to better resolve neural fibers that mix or cross.  ...  Here, we implemented a framework for advanced mathematical analysis of mouse 5-shell HARDI (b=1000, 3000, 4000, 8000, 12000 s/mm 2 ), also known as hybrid diffusion imaging (HYDI).  ...  HYDI offers an unprecedented power to assess the structural connectivity and neural integrity of the mouse brainespecially for studies that aim to validate the diffusion signal with high-resolution histological  ... 
doi:10.1117/12.2081491 pmid:25859293 pmcid:PMC4386863 dblp:conf/miip/DaianuJVPJBZMT15 fatcat:e37glazfkrhbxljgjwsg4fbsme

HIgh b -value and high Resolution Integrated Diffusion (HIBRID) imaging

Qiuyun Fan, Aapo Nummenmaa, Jonathan R. Polimeni, Thomas Witzel, Susie Y. Huang, Van J. Wedeen, Bruce R. Rosen, Lawrence L. Wald
2017 NeuroImage  
In this study, we propose a method, termed HIgh b-value and high Resolution Integrated Diffusion (HIBRID) imaging, for acquiring and combining the information from these two complementary types of scan  ...  The parameter selection for diffusion MRI experiments is dominated by the "k-q tradeoff" whereby the Signal to Noise Ratio (SNR) of the images is traded for either high spatial resolution (determined by  ...  Rockland and Karl Zilles for helpful discussions on connectional neuroanatomy in the brain. We thank Drs. Caroline Magnain and Bruce Fischl for providing OCT images of human brain samples.  ... 
doi:10.1016/j.neuroimage.2017.02.002 pmid:28188913 pmcid:PMC5501959 fatcat:p6jt2selfrat3ac5tltonclcja

Connectivity and tissue microstructural alterations in right and left temporal lobe epilepsy revealed by diffusion spectrum imaging

Alia Lemkaddem, Alessandro Daducci, Nicolas Kunz, François Lazeyras, Margitta Seeck, Jean-Philippe Thiran, Serge Vulliémoz
2014 NeuroImage: Clinical  
In addition, the high angular and radial resolution of DSI allowed us to evaluate also some of the biophysical compartment models, to better understand the cause of the changes in diffusion anisotropy.  ...  Our study provides further structural evidence that RTLE and LTLE are not symmetrical entities and DSI-based imaging could help investigate the microstructural correlate of these imaging abnormalities.  ...  The authors would also like to thank Gunnar Krueger from Siemens Schweiz AG for setting up the scanning protocol.  ... 
doi:10.1016/j.nicl.2014.07.013 pmid:26236626 pmcid:PMC4519999 fatcat:znc34afqtfa2zpztuzq2dqptb4

MR Diffusion Histology and Micro-Tractography Reveal Mesoscale Features of the Human Cerebellum

Flavio Dell'Acqua, Istvan Bodi, David Slater, Marco Catani, Michel Modo
2013 Cerebellum  
In this study, we report the application of MR diffusion histology and micro-tractography methods to reveal the combined cytoarchitectural organisation and connectivity of the human cerebellum at a resolution  ...  State-of-the-art in vivo magnetic resonance imaging (MRI) methods, such as diffusion tractography techniques, can reveal trajectories of the major white matter pathways, but their correspondence with underlying  ...  Williams for his continued support and stimulation to push the boundaries of imaging science, as well as Dr.  ... 
doi:10.1007/s12311-013-0503-x pmid:23907655 pmcid:PMC3824945 fatcat:fxexf6gfvng6vkbcyqwjl74ib4

Mapping Brain Anatomical Connectivity Using Diffusion Magnetic Resonance Imaging: Structural connectivity of the human brain

Junning Li, Yonggang Shi, Arthur W. Toga
2016 IEEE Signal Processing Magazine  
Along with an overview of existing technologies, we also attempt to provide an outlook of future challenges in building a comprehensive connectivity map that integrates genetic and functional information  ...  Following years of steady advancement, dMR imaging technique has reached unprecedented spatial and angular resolution, and its computational analysis methods, stimulated by growing research needs, have  ...  Future Scope Advances in dMR imaging have provided a platform for investigating brain connectivity in vivo at an unpreceded spatial and angular resolution.  ... 
doi:10.1109/msp.2015.2510024 pmid:27212872 pmcid:PMC4869891 fatcat:nkfwwsp6cnatlmeaah2stye2n4

An investigation of the white matter microstructure in motion detection using diffusion MRI

Gergő Csete, Nikoletta Szabó, Alice Rokszin, Eszter Tóth, Gábor Braunitzer, György Benedek, László Vécsei, Zsigmond Tamás Kincses
2014 Brain Research  
Correlation was calculated between the motion detection threshold and white matter microstructure as measured by high angular resolution diffusion MRI.  ...  One of the most widely investigated functions of the brain is vision.  ...  Acknowledgement The study was supported by the "Neuroscience Research Group of the Hungarian Academy of Sciences and University of Szeged", project FNUSA-ICRC (no.  ... 
doi:10.1016/j.brainres.2014.05.006 pmid:24833063 fatcat:nwqyc5glsvaffpvofz2mtqpyka

Fusion of white and gray matter geometry: A framework for investigating brain development

Peter Savadjiev, Yogesh Rathi, Sylvain Bouix, Alex R. Smith, Robert T. Schultz, Ragini Verma, Carl-Fredrik Westin
2014 Medical Image Analysis  
Current neuroimaging investigation of the white matter typically focuses on measurements derived from diffusion tensor imaging, such as fractional anisotropy (FA).  ...  Its formulation is based on the differential geometry of curve sets and is easily incorporated into a continuous scale-space framework.  ...  Siddiqi, "Labeling of ambiguous sub-voxel fibre bundle configurations in high angular resolution diffusion MRI", NeuroImage, 41( P. Savadjiev, J. S. W. Campbell, G. B. Pike and K.  ... 
doi:10.1016/j.media.2014.06.013 pmid:25066750 pmcid:PMC4162846 fatcat:ul4n7c47knazbdoykjcbggjo54

A Novel Measure of Fractional Anisotropy Based on the Tensor Distribution Function [chapter]

Liang Zhan, Alex D. Leow, Siwei Zhu, Marina Barysheva, Arthur W. Toga, Katie L. McMahon, Greig I. de Zubicaray, Margaret J. Wright, Paul M. Thompson
2009 Lecture Notes in Computer Science  
Fractional anisotropy (FA), a very widely used measure of fiber integrity based on diffusion tensor imaging (DTI), is a problematic concept as it is influenced by several quantities including the number  ...  With High-angular resolution diffusion imaging (HARDI) and the tensor distribution function (TDF), one can reconstruct multiple underlying fibers per voxel and their individual anisotropy measures by representing  ...  Seven independent gradients are mathematically sufficient to determine the diffusion tensor, but MRI protocols with higher angular and radial resolutions, such as the high angular resolution diffusion  ... 
doi:10.1007/978-3-642-04268-3_104 fatcat:5r3gpidcjnetbph4k65jnkgnoa

Localization and imaging of white matter fiber crossings in whole mouse brains using diffusion MRI and serial blockface OCT

Joël Lefebvre, Patrick Delafontaine-Martel, Philippe Lemieux, Maxime Descoteaux, Laurent Petit, Frédéric Lesage, Qingming Luo, Jun Ding, Ling Fu
2021 Optical Techniques in Neurosurgery, Neurophotonics, and Optogenetics  
To obtain an accurate representation of a brain structural connectivity, diffusion MRI and fiber tracking depend on a good understanding of white matter fiber structures.  ...  Our method uses the Allen Mouse Brain connectivity atlas and tractogram analysis using diffusion MRI techniques to identify candidate regions of interests containing fiber crossings based on two predetermined  ...  We also wish to express our gratitude to all the open science efforts, such as the mouse brain images and the connectivity data shared by the Allen Mouse Brain Institute and by the Neuroinformatics-NL  ... 
doi:10.1117/12.2577648 fatcat:zx7wrpafj5ar3psgyy3r362q6m
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