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Diffusion Maps Clustering for Magnetic Resonance Q-Ball Imaging Segmentation

Demian Wassermann, Maxime Descoteaux, Rachid Deriche
2008 International Journal of Biomedical Imaging  
segmenting the Q-Ball image by using an adaptive scale-space parameter.  ...  It is well known that diffusion tensor imaging (DTI) is restricted in complex fiber regions with crossings and this is why recent high-angular resolution diffusion imaging (HARDI) such as Q-Ball imaging  ...  ACKNOWLEDGMENTS The authors would like to thank the Max Planck Institute for Human Cognitive and Brain Sciences (Leipzig, Germany) and, in particular, to Timm Wetzel for providing the diffusion-weighted  ... 
doi:10.1155/2008/526906 pmid:18317506 pmcid:PMC2246070 fatcat:yrg7n4vkzneuhg4pcemtzovcjm

Automatic Stroke Lesions Segmentation in Diffusion-Weighted MRI [article]

Noranart Vesdapunt, Nongluk Covavisaruch
2018 arXiv   pre-print
Diffusion-Weighted Magnetic Resonance Imaging (DWI) is widely used for early cerebral infarct detection caused by ischemic stroke.  ...  In order to reduce human error in research operation and clinical process, we adopt a semi-automatic segmentation as gold standard using Fluid-Attenuated Inversion-Recovery (FLAIR) Magnetic Resonance Image  ...  Yuttachai Likitjareon for biomedical advices.  ... 
arXiv:1803.10385v1 fatcat:eml26rbkcnh7fb2n2kd7o6uefe

Parcellation of Human Amygdala Subfields Using Orientation Distribution Function and Spectral K-means Clustering [chapter]

Qiuting Wen, Brian D. Stirling, Long Sha, Li Shen, Paul J. Whalen, Yu-Chien Wu
2017 Mathematics and Visualization  
The present study uses high angular and high spatial resolution diffusion magnetic resonance imaging to generate orientation distribution function, which bears distinctive microstructural features.  ...  Despite the functional relevance and unique circuitry of each human amygdaloid subnuclei, there has yet to be an efficient imaging method for identifying these regions in vivo.  ...  In vivo studies of function and structure of the human amygdala have been made possible through neuroimaging, notably functional magnetic resonance imaging (fMRI) and diffusion magnetic resonance imaging  ... 
doi:10.1007/978-3-319-54130-3_10 pmid:28990008 pmcid:PMC5627512 fatcat:l7hqdws4kfhvnd4nv4zppcman4

Diffusion k-tensor Estimation from Q-ball Imaging Using Discretized Principal Axes [chapter]

Ørjan Bergmann, Gordon Kindlmann, Arvid Lundervold, Carl-Fredrik Westin
2006 Lecture Notes in Computer Science  
A reoccurring theme in the diffusion tensor imaging literature is the per-voxel estimation of a symmetric 3×3 tensor describing the measured diffusion.  ...  In this work we attempt to generalize this approach by calculating 2 or 3 or up to k diffusion tensors for each voxel.  ...  Introduction Diffusion tensor Magnetic Resonance Imaging (DTI) has recently become an important tool in the analysis of the central nervous system.  ... 
doi:10.1007/11866763_33 fatcat:goeayzf3rvg7xaydlmnapbzqru

Magnetic Resonance Imaging of Stroke in the Rat

Guang-Liang Ding, Michael Chopp, Lian Li, Li Zhang, Zheng-Gang Zhang, Qing-Jiang Li, Quan Jiang
2014 Chinese Journal of Magnetic Resonance  
Magnetic resonance imaging (MRI) is now a routine neuroimaging tool in the clinic.  ...  Q-ball is one b-value shell DSI with a higher resolution angular distribution [54] , and diffusional kurtosis imaging (DKI) acquires multiple b-value shells but with less directions than Q-ball does  ...  Magnetic resonance imaging (MRI) is now a routine neuroimaging tool in the clinic.  ... 
pmid:24920874 pmcid:PMC4049345 fatcat:xlk566hqvjbbndcnaangx44bm4

Processing and Visualization of Diffusion MRI [chapter]

James G. Malcolm, Yogesh Rathi, Carl-Fredrik Westin
2010 Biomedical Image Processing  
This chapter provides a survey of techniques for processing and visualization of diffusion magnetic resonance imagery.  ...  Last, we draw upon these as building blocks for the visualization and analysis of the neural architecture of individuals and groups.  ...  Introduction The advent of diffusion magnetic resonance imaging (dMRI) has provided the opportunity for non-invasive investigation of neural architecture.  ... 
doi:10.1007/978-3-642-15816-2_16 fatcat:uqcj676gbzc3fkqlk6vwep3mfm

Recent Advances in Neuroimaging Methods

Oury Monchi, Habib Benali, Julien Doyon, Antonio P. Strafella
2008 International Journal of Biomedical Imaging  
Segmentation of white matter and subcortical structures from diffusion weighted magnetic resonance imaging, either DTI or HARDI, is fairly recent.  ...  Monte Carlo particles move inside the continuous field of q-ball diffusion ODF and are subject to a trajectory regularization scheme. Their new algorithm is tested on simulated data.  ...  Ge Wang, for making this special issue possible and successful. Oury Monchi Habib Benali Julien Doyon Antonio P. Strafella  ... 
doi:10.1155/2008/218582 pmid:18483610 pmcid:PMC2376048 fatcat:b46fwvcsizbz7pa5m35bntzppu

In-vivo probabilistic atlas of human thalamic nuclei based on diffusion- weighted magnetic resonance imaging

Elena Najdenovska, Yasser Alemán-Gómez, Giovanni Battistella, Maxime Descoteaux, Patric Hagmann, Sebastien Jacquemont, Philippe Maeder, Jean-Philippe Thiran, Eleonora Fornari, Meritxell Bach Cuadra
2018 Scientific Data  
Automated segmentation of thalamic subparts is currently achieved by exploring diffusion-weighted magnetic resonance imaging (DW-MRI), but in absence of such data, atlas-based segmentation can be used  ...  clustering method.  ...  Thalamic nuclei clustering We first compute the orientation distribution functions (ODFs) of the thalamus from high angular resolution diffusion images (HARDI) using q-Ball imaging with the constant solid  ... 
doi:10.1038/sdata.2018.270 fatcat:3oq5eqlq6rdivfjgcq66rexzbu

Fibertract segmentation in position orientation space from high angular resolution diffusion MRI

Patric Hagmann, Lisa Jonasson, Thomas Deffieux, Reto Meuli, Jean-Philippe Thiran, Van J. Wedeen
2006 NeuroImage  
In diffusion MRI, standard approaches for fibertract identification are based on algorithms that generate lines of coherent diffusion, currently known as tractography.  ...  Indeed, we show that it is possible to segment efficiently wellknown fibertracts with classical image processing methods provided that the problem is formulated in a five-dimensional space of position  ...  Xavier Bresson (ITS, EPFL) for the very fruitful discussions. This work was financially supported by the Swiss National Science Foundation (SNSF) as well as Mr. Yves Paternot.  ... 
doi:10.1016/j.neuroimage.2006.02.043 pmid:16815713 fatcat:as5h5etskfdqjbnvv3mxftvppm

Localization of function-specific segments of the primary motor pathway in children with Sturge-Weber syndrome: A multimodal imaging analysis

Jeong-Won Jeong, Harry T. Chugani, Csaba Juhász
2013 Journal of Magnetic Resonance Imaging  
Purpose-To explore whether diffusion weighted imaging (DWI) can localize specific segments of primary motor areas in children with Sturge-Weber syndrome (SWS), this study investigated the cortico-spinal  ...  The resulting PCG-clusters were utilized to image primary motor pathways in DWI and find metabolic abnormalities of primary motor areas in PET scans.  ...  We thank Cathie Germain for assisting patient recruitment and scheduling, Majid Janabi MD, Jane Cornett RN and Anne Deboard RN for performing sedation, Xuan Yang BS for assisting MRI data acquisition,  ... 
doi:10.1002/jmri.24076 pmid:23463702 pmcid:PMC3695004 fatcat:voh72rnbqjdvndifrblbxfur4a

A review of diffusion tensor magnetic resonance imaging computational methods and software tools

Khader M. Hasan, Indika S. Walimuni, Humaira Abid, Klaus R. Hahn
2011 Computers in Biology and Medicine  
In this work we provide an up-to-date short review of computational magnetic resonance imaging (MRI) and software tools that are widely used to process and analyze diffusion-weighted MRI data.  ...  A review of different methods used to acquire, model and analyze diffusion-weighted imaging data (DWI) is first provided with focus on diffusion tensor imaging (DTI).  ...  Diffusional kurtosis imaging: the quantification of non-Gaussian water diffusion by means of magnetic resonance imaging. Magn Reson Med. 2005; 53:1432-1440. [PubMed: 15906300] 46.  ... 
doi:10.1016/j.compbiomed.2010.10.008 pmid:21087766 pmcid:PMC3135778 fatcat:osm25rvelrgb3ddhogdfnl4y6a

An Introduction to Model-Independent Diffusion Magnetic Resonance Imaging

Anh T. Van, Cristina Granziera, Roland Bammer
2010 Topics in Magnetic Resonance Imaging (TMRI)  
Q-space based techniques such as diffusion spectrum imaging, q-ball imaging, and their variations have been used extensively in research for their desired capability to delineate complex neuronal architectures  ...  such as multiple fiber crossings in each of the image voxels.  ...  Nowadays, magnetic resonance imaging (MRI) techniques help one to map cerebral functional and structural connectivity in vivo and non-invasively.  ... 
doi:10.1097/rmr.0b013e31823e6303 pmid:22158128 pmcid:PMC3238803 fatcat:tt5qky52czf43gn4wk6cfapava

A systematic comparison of structural, structural connectivity, and functional connectivity based thalamus parcellation techniques [article]

Charles Iglehart, Thomas Tourdias Department of Electrical and Computer Engineering, University of Arizona, Tucson, Arizona, United States, Department of Psychology, University of California Los Angeles, Los Angeles, California, United States, Neurosurgery Brain Research Center, University of California Los Angeles (+11 others)
2019 arXiv   pre-print
The contrast between thalamic nuclei as well as between the thalamus and surrounding tissues is poor in T1 and T2 weighted magnetic resonance imaging (MRI), inhibiting efforts to date to segment the thalamus  ...  diffusion tensor imaging (DTI), and resting state functional MRI (fMRI).  ...  FODs were computed at each DTI voxel via the FSL 'qboot' utility, which implements the Q-Ball Imaging algorithm (Tuch, 2004) .  ... 
arXiv:1912.08343v1 fatcat:6n5u5spzbnfi3mk2c7rh52afci

Post-mortem inference of the human hippocampal connectivity and microstructure using ultra-high field diffusion MRI at 11.7 T

Justine Beaujoin, Nicola Palomero-Gallagher, Fawzi Boumezbeur, Markus Axer, Jeremy Bernard, Fabrice Poupon, Daniel Schmitz, Jean-François Mangin, Cyril Poupon
2018 Brain Structure and Function  
The MRI data set was analyzed using analytical Q-Ball Imaging, Diffusion Tensor Imaging (DTI), and Neurite Orientation Dispersion and Density Imaging models.  ...  Ultra-high magnetic resonance imaging provides access to its inner structure in vivo. However, gradient limitations on clinical systems hinder access to its inner connectivity and microstructure.  ...  Acknowledgements This project has received funding from the European Union's Horizon 2020 Framework Programme for Research and Innovation under Grant Agreement no. 720270 (Human Brain Project SGA1).  ... 
doi:10.1007/s00429-018-1617-1 pmid:29387938 pmcid:PMC5968081 fatcat:4cttfy7ienhrxex4ra43xngsly

Distortion correction for diffusion-weighted MRI tractography and fMRI in the temporal lobes

Karl V. Embleton, Hamied A. Haroon, David M. Morris, Matthew A. Lambon Ralph, Geoff J.M. Parker
2010 Human Brain Mapping  
Single shot echo-planar imaging (EPI) sequences are currently the most commonly used sequences for diffusion-weighted imaging (DWI) and functional magnetic resonance imaging (fMRI) as they allow relatively  ...  in DWI, in addition to those created by variations in magnetic susceptibility.  ...  ACKNOWLEDGMENTS We acknowledge the help of Liz Moore of Philips Medical Systems for assistance with sequence development.  ... 
doi:10.1002/hbm.20959 pmid:20143387 fatcat:ivyr24upnbd7lpfiwswsnczhkq
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