A system and method are provided herein for designing and transmitting RF
pulses which cause a reduced off-resonance magnetization transfer
saturation. An RF pulse shape may be optimized according to a set of
Bloch solutions defining a desired magnetization profile. An RF pulse may
be transmitted according to this optimized shape according to a k-space
trajectory which traverses a high amplitude portion of the RF pulse more
times than one or more low amplitude portions. In addition, a generally
alternating slice select gradient may be applied during transmission of
the RF pulse.