Vincent Gras1, Michel Luong2, Alexis Amadon1, and Nicolas Boulant1
The kT-points parametrization is a
powerful technique to mitigate the RF inhomogeneity at ultra-high field which can also be used to achieve
homogeneous non-selective inversion profiles with less SAR than adiabatic RF
pulses. The large flip angle regime thus is an interesting domain
of application of the kT-points technique. However, to fully exploit it, it is necessary to optimize the placement of the kT-points
in k-space. In this work, the simultaneous optimization of
the RF and k-space trajectory coefficients is
proposed and validated, whereby SAR and power constraints are handled
explicitly.
