Figure 3.

Z-spectra for two CW saturation pulses applied with B1,rms of 1.7 μT (7°/ms) and 3.1 μT (13°/ms), and for a series of Gaussian inversion pulses with a B1,rms of 2.1 μT. Discrete and CW saturations resulted in qualitatively similar z-spectra, with the widths of both the TP peak centered at 198 ppm and RBC peak centered at 211 ppm broadening with increasing RF power.