Multislice B₁ Mapping Method Using Magnetic Resonance Composite Spin Echo Sequences and Simultaneous Echo Refocusing

Figure 6

Resulting phase of the proposed B₁ mapping method and multislice ISI mapping method with the phantom. (a) B₀ inhomogeneity maps. (b) Resulting phase maps and (c) the resulting phase maps corrected for B₀ inhomogeneity for the proposed B₁ mapping method. (d) Error values before and after B₀ inhomogeneity corrections for the proposed B₁ mapping method. (e) B₁ maps calculated using the multislice ISI mapping method. (f) Error values between the proposed B₁ mapping method and multislice ISI mapping method.