A magnetic resonance imaging (MRI) apparatus configured for obtaining a magnetic resonance, MR, image based on a multi-echo sequence, the MRI apparatus comprising: a data obtainer configured to obtain first echo data (E1), based on an echo that is generated at a first echo time (TE1), and obtain second echo data (E2), based on an echo that is generated at a second echo time (TE2) later than the first echo time (TE1), the first echo data (E1) comprising a part overlapping a part included in the second echo data (E2) in a k-space, obtain third echo data (E1') based on an echo that is generated at a third echo time (TE1'), and obtain fourth echo data (E2') based on an echo that is generated at a fourth echo time (TE2'); and an image processor configured to reconstruct the MR image, based on the first echo data (E1) and the second echo data (E2), characterized in that the first echo data (E1), the second echo data (E2), the third echo data (E1') and the fourth echo data (E2') are obtained in a single repetition time (TR) period of the multi-echo sequence; and the image processor is further configured to: generate a B0 map, based on the third echo data (E1') and the fourth echo data (E2'); perform phase correction on either one or both of the first echo data (E1) and the second echo data (E2), based on the generated B0 map; and reconstruct the MR image, based on either one or both of the first echo data (E1) and the second echo data (E2) on which the phase correction is performed.. a data obtainer configured to obtain first echo data (E1), based on an echo that is generated at a first echo time (TE1), and obtain second echo data (E2), based on an echo that is generated at a second echo time (TE2) later than the first echo time (TE1), the first echo data (E1) comprising a part overlapping a part included in the second echo data (E2) in a k-space, obtain third echo data (E1') based on an echo that is generated at a third echo time (TE1'), and obtain fourth echo data (E2') based on an echo that is generated at a fourth echo time (TE2'); and an image processor configured to reconstruct the MR image, based on the first echo data (E1) and the second echo data (E2), characterized in that the first echo data (E1), the second echo data (E2), the third echo data (E1') and the fourth echo data (E2') are obtained in a single repetition time (TR) period of the multi-echo sequence; and the image processor is further configured to: generate a B0 map, based on the third echo data (E1') and the fourth echo data (E2'); perform phase correction on either one or both of the first echo data (E1) and the second echo data (E2), based on the generated B0 map; and reconstruct the MR image, based on either one or both of the first echo data (E1) and the second echo data (E2) on which the phase correction is performed.. generate a B0 map, based on the third echo data (E1') and the fourth echo data (E2'); perform phase correction on either one or both of the first echo data (E1) and the second echo data (E2), based on the generated B0 map; and reconstruct the MR image, based on either one or both of the first echo data (E1) and the second echo data (E2) on which the phase correction is performed.. <EOS>