Our questions have to do with equations 2 and 4 from "An integrated approach to correction for off-resonance effects and subject movement in diffusion MR imaging".
1. What exactly is meant by "we have abused notation slightly" when referring to R_i^(-1) and equation A1?
2. How is the rigid body off resonance field omega being calculated given the eddy-current off resonance field and the acquisition parameters?
Thanks!
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