Figure 5. B0 sensitivity.
a) Transmitter frequency was varied from -200 Hz to +200 Hz for the tested modules. T2-prep time was 60 ms for all modules, and the coefficient of variation (CV) is shown as a function of frequency offset. b) Typical images are shown. Red arrows point out areas of image inhomogeneity. The mBIR-4, Silver-Hoult-pair and proposed T2-prep modules were relatively insensitive to changes in B0 unlike the MLEV4 module.