Figure 1 – Diagram of the proposed radial pulse sequence. For each time step, a saturation RF pulse train is played. The resonance frequency of the pulse train can be fixed or varied according to the experiment. Each pulse train is then followed by a radial acquisition of 16 spokes whose angle is defined by the golden-angle.

Figure 4 – CEST-MRF acquisition with the proposed sequence. Note the variation in signal intensity due to the varying saturation pulse power.