Christopher J. Wiggins
Harvard University
14 Papers
188 Citations
Christopher J. Wiggins is an academic researcher from Harvard University. The author has contributed to research in topics: Electromagnetic coil & Phased array. The author has an hindex of 11, co-authored 14 publications. Previous affiliations of Christopher J. Wiggins include Max Planck Society.
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Papers
Comparison of physiological noise at 1.5 T, 3 T and 7 T and optimization of fMRI acquisition parameters.
Christina Triantafyllou,Richard D. Hoge,Gunnar Krueger,Christopher J. Wiggins,Andreas Potthast,Graham Wiggins,Lawrence L. Wald +6 more
TL;DR: By reducing the signal strength using higher image resolution, the ratio of physiologic to image noise could be reduced to a regime where increased sensitivity afforded by higher field strength still translated to improved SNR in the fMRI time-series.
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•Journal Article
Diffuse Axonal Injury Associated with Chronic Traumatic Brain Injury: Evidence from T2*-weighted Gradient-echo Imaging at 3 T
TL;DR: T2*-weighted gradient-echo imaging at high field strength is a useful tool for the evaluation of diffuse axonal injury during the chronic stage of traumatic brain injury.
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Detection of Entorhinal Layer II Using Tesla Magnetic Resonance Imaging
Jean C. Augustinack,Andre van der Kouwe,Megan L. Blackwell,Megan L. Blackwell,David H. Salat,Christopher J. Wiggins,Matthew P. Frosch,Graham Wiggins,Andreas Potthast,Lawrence L. Wald,Bruce Fischl,Bruce Fischl +11 more
TL;DR: Ex vivo results could break ground for high‐resolution in vivo scanning that could ultimately benefit early diagnosis and treatment of neurodegenerative disease.
Eight‐channel phased array coil and detunable TEM volume coil for 7 T brain imaging
Graham Wiggins,Andreas Potthast,Christina Triantafyllou,Christopher J. Wiggins,Lawrence L. Wald +4 more
TL;DR: An eight‐channel receive‐only brain coil and table‐top detunable volume transmit coil were developed and tested at 7 T for human imaging and the sensitivity and coverage of the array is demonstrated with high‐resolution images of the brain cortex.
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Design considerations and coil comparisons for 7 T brain imaging
Lawrence L. Wald,Graham Wiggins,Andreas Potthast,Christopher J. Wiggins,Christina Triantafyllou +4 more
TL;DR: In this paper, five RF head coils were constructed and tested on a 7 T scanner including 2 TEM designs, 2 birdcage designs and a local receive-only array, and they were found to have subtle differences in field distribution, interaction with the dielectric boundary conditions of the head and fringe fields in the neck and shoulders.
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