V
Van J. Wedeen
Researcher at Harvard University
Publications - 162
Citations - 28361
Van J. Wedeen is an academic researcher from Harvard University. The author has contributed to research in topics: Diffusion MRI & Tractography. The author has an hindex of 66, co-authored 159 publications receiving 26189 citations. Previous affiliations of Van J. Wedeen include Massachusetts Institute of Technology & Boston University.
Papers
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Journal ArticleDOI
Mapping the Structural Core of Human Cerebral Cortex
Patric Hagmann,Leila Cammoun,Xavier Gigandet,Reto Meuli,Christopher J. Honey,Van J. Wedeen,Olaf Sporns +6 more
TL;DR: The spatial and topological centrality of the core within cortex suggests an important role in functional integration and a substantial correspondence between structural connectivity and resting-state functional connectivity measured in the same participants.
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High angular resolution diffusion imaging reveals intravoxel white matter fiber heterogeneity.
David S. Tuch,Timothy G. Reese,Mette R. Wiegell,Nikos Makris,John W. Belliveau,Van J. Wedeen +5 more
TL;DR: To test whether a geodesic, high b‐value diffusion gradient sampling scheme could resolve multiple fiber orientations within a single voxel, the diffusion signal was modeled as arising from a discrete mixture of Gaussian diffusion processes in slow exchange, and the underlying mixture of tensors was solved for using a gradient descent scheme.
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Mapping complex tissue architecture with diffusion spectrum magnetic resonance imaging.
Van J. Wedeen,Patric Hagmann,Patric Hagmann,Wen-Yih Isaac Tseng,Timothy G. Reese,Robert M. Weisskoff +5 more
TL;DR: Methods are presented to map complex fiber architectures in tissues by imaging the 3D spectra of tissue water diffusion with MR, showing correspondence between the orientational maxima of the diffusion spectrum and those of the fiber orientation density at each location.
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Reduction of eddy-current-induced distortion in diffusion MRI using a twice-refocused spin echo.
TL;DR: This work presents an improvement on the spin‐echo (SE) diffusion sequence that displays less distortion and consequently improves image quality, and allows more flexible diffusion gradient timing.
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Blipped-controlled aliasing in parallel imaging for simultaneous multislice echo planar imaging with reduced g-factor penalty.
Kawin Setsompop,Borjan Gagoski,Jonathan R. Polimeni,Thomas Witzel,Thomas Witzel,Van J. Wedeen,Van J. Wedeen,Lawrence L. Wald,Lawrence L. Wald +8 more
TL;DR: In this paper, the authors introduce a method to create interslice image shifts in the phase encoding direction to increase the distance between aliasing pixels, induced using sign-and amplitude-modulated slice-select gradient blips simultaneous with the EPI phase encoding blips.