Accelerated diffusion spectrum imaging in the human brain using compressed sensing

2011 ◽  
Vol 66 (5) ◽  
pp. 1226-1233 ◽  
Author(s):  
Marion I. Menzel ◽  
Ek T. Tan ◽  
Kedar Khare ◽  
Jonathan I. Sperl ◽  
Kevin F. King ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Human Brain ◽  
Diffusion Spectrum Imaging ◽  
Spectrum Imaging

scholarly journals Accelerated diffusion spectrum imaging with compressed sensing using adaptive dictionaries

2012 ◽  
Vol 68 (6) ◽  
pp. 1747-1754 ◽  
Author(s):  
Berkin Bilgic ◽  
Kawin Setsompop ◽  
Julien Cohen-Adad ◽  
Anastasia Yendiki ◽  
Lawrence L. Wald ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Diffusion Spectrum Imaging ◽  
Spectrum Imaging

Comparison of basis functions and q-space sampling schemes for robust compressed sensing reconstruction accelerating diffusion spectrum imaging

2019 ◽  
Vol 32 (3) ◽  
pp. e4055 ◽  
Author(s):  
Alexandra Tobisch ◽  
Thomas Schultz ◽  
Rüdiger Stirnberg ◽  
Gabriel Varela-Mattatall ◽  
Hans Knutsson ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Basis Functions ◽  
Sampling Schemes ◽  
Diffusion Spectrum Imaging ◽  
Spectrum Imaging

scholarly journals Accelerated diffusion spectrum imaging with compressed sensing using adaptive dictionaries

2012 ◽  
Vol 68 (6) ◽  
pp. spcone-spcone ◽  
Author(s):  
Berkin Bilgic ◽  
Kawin Setsompop ◽  
Julien Cohen-Adad ◽  
Anastasia Yendiki ◽  
Lawrence L. Wald ◽  
...  
Keyword(s):  
Compressed Sensing ◽  
Diffusion Spectrum Imaging ◽  
Spectrum Imaging

A Two-Fiber Anisotropic Constitutive Model of Human Brain With Intravoxel Heterogeneity of Fiber Orientation Using Diffusion Spectrum Imaging (DSI)

2014 ◽  
Author(s):  
Harsha T. Garimella ◽  
Hao Yuan ◽  
Brian D. Johnson ◽  
Semyon L. Slobounov ◽  
Reuben H. Kraft
Keyword(s):  
Constitutive Model ◽  
Human Brain ◽  
Computational Modeling ◽  
Brain Tissue ◽  
Fiber Orientation ◽  
Constitutive Models ◽  
The United States ◽  
Diffusion Spectrum Imaging ◽  
Macro Scale ◽  
Spectrum Imaging

Sports-related concussion is a major public health problem in the United States that is estimated to occur in 1.6–3.8 million individuals annually, and is particularly common in football. Despite the significance and growing concerns about the potential long-term consequences of concussion, its biomechanical mechanisms are not fully understood. Since 1970’s computational head modeling has proved to be an efficient tool for establishment of health injury criteria and studies on head injury mitigation. One important step in the computational modeling of the human head is to develop the mathematical material models (constitutive models) for the tissue. There have been many attempts to develop an accurate constitutive model for brain tissue. Recent experimental studies have highlighted the significant influence of axonal fibers on the non-linear and anisotropic behavior of brain tissue. Tractography based on diffusion tensor imaging (DTI) has been used in various previous studies to develop a constitutive model for human brain by including the anisotropic properties. Though DTI provides a macro scale information about the axonal fibers in the brain, it cannot directly describe multiple fiber orientations within a single voxel. To address this limitation within the DTI tractography, Diffusion Spectrum imaging (DSI), a variant of Diffusion Weighted Imaging, is used. DSI is generally used in deriving connectome sets and is sensitive to intravoxel heterogeneities of fiber orientation in diffusion direction caused by crossing fiber tracts and thus allowing for more accurate mapping of axonal trajectories than other diffusion methods. Thus more accurate constitutive models can be developed from the structural information about the human brain using DSI. This paper extends, the anisotropic constitutive models developed previously, for two family of fibers which will be useful in the computational modeling of the human brain using DSI.

The uncinate fasciculus as observed using diffusion spectrum imaging in the human brain

2016 ◽  
Vol 58 (6) ◽  
pp. 595-606 ◽  
Author(s):  
Bing Leng ◽  
Siyuan Han ◽  
Yijun Bao ◽  
Hongliang Zhang ◽  
Yong Wang ◽  
...  
Keyword(s):  
Human Brain ◽  
Uncinate Fasciculus ◽  
Diffusion Spectrum Imaging ◽  
Spectrum Imaging
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