The simulated differences of the Mz of static spins at different distances to isocenter, following the 20 ms DRHT (a), the 48 ms and 64 ms FT-VSS (b), the 48 ms and 64 ms FT-VSI pulse trains (c), in the presence of EC effects with different time constants, to the Mz at EC-free conditions. Velocity-sensitive (V-sensitive) labeling and velocity-compensated (V-compensated) control waveforms are both tested for each FT-VS configuration. B0/B1 inhomogeneity and T2 effects were not taken into account.