Does the best distance beween 2 spokes match the inverse RF wavelength ?
Alexis Amadon 1 , Laura Dupas 1 , Alexandre Vignaud 1 , and Nicolas Boulant 1
I2BM / NeuroSpin / UNIRS, CEA, Gif-sur-Yvette,
The spoke pair k-space trajectory is known to be
efficient to compensate for B1 inhomogenity in tailored
slice selection at ultra high field. In the Magnitude
Least Squares problem, the parameter of interest is the
distance between the 2 spokes. The optimal distance is
analysed across different human brains and slices at 7T.
It seems to be fairly constant and its inverse is shown
to roughly match the RF wavelength in the human brain.
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