Transforming grids to shells and vice versa: an evaluation of interpolation methods in diffusion MRI q- and b-space
Chantal M.W. Tax 1 , Sjoerd B. Vos 1 , Max A. Viergever 1 , Martijn Froeling 2 , and Alexander Leemans 1
Image Sciences Institute, University Medical
Center Utrecht, Utrecht, Utrecht, Netherlands,
of Radiology, University Medical Center Utrecht,
Utrecht, Utrecht, Netherlands
Interpolation in q- or b-space can be used to convert
between different sampling patterns (e.g. from multi
shell to grid as in hybrid diffusion imaging) to be able
to compare between diffusion MRI reconstruction methods,
or to detect and correct for artifacts, amongst others.
In this work we perform a comparison between different
interpolation methods (i.e. nearest neighbor, linear,
cubic and model based) in q- and b-space, on simulated
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