Robust autocalibrated structured low‐rank EPI ghost correction
We propose and evaluate a new structured low‐rank method for echo‐planar imaging (EPI) ghost correction called Robust Autocalibrated LORAKS (RAC‐LORAKS). The method can be used to suppress EPI ghosts arising from the differences between different readout gradient polarities and/or the differences between different shots. It does not require conventional EPI navigator signals, and is robust to imperfect autocalibration data.