Abstract #2658
Diffusion gradient calibration in DSI using a cyclooctane phantom
Irvin Teh 1 , Maelene Lohezic 1 , Dunja Aksentijevic 1,2 , and Jurgen E Schneider 1
1
Division of Cardiovascular Medicine,
Radcliffe Department of Medicine, University of Oxford,
Oxford, United Kingdom,
2
Cardiovascular
Division, The Rayne Institute, King's College London,
London, United Kingdom
Gradient calibration is critical to accurate sampling of
q-space in diffusion MRI, particularly for applications
such as diffusion spectrum imaging (DSI) that rely on a
precise relationship of q-space sampling. Cyclooctane
possesses a number of properties that make it suitable
for gradient calibration at high b-values, including
isotropic diffusion, relatively low diffusivity and high
viscosity, and a single proton resonance. We present the
novel use of a phantom intended for gradient calibration
in DSI and other high b-value q-space imaging
applications.
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