LAUSR

Concomitant gradients induce phase errors that increase quadratically with distance from isocenter. This work proposes a complex‐based fitting method that addresses concomitant gradient phase errors in chemical shift encoded (CSE) MRI estimation of proton density fat fraction (PDFF) and R2* through joint estimation of pass‐specific phase terms. This method is applicable to time‐interleaved multi‐echo gradient‐echo acquisitions (i.e., multi‐pass acquisitions) and does not require prior knowledge of gradient waveforms typically needed to address concomitant gradient phase errors.