A magnetic resonance imaging (MRI) apparatus includes a radio frequency (RF) coil configured to receive a magnetic resonance (MR) signal emitted from an object; a sampling pattern determiner configured to determine a sampling pattern of k-space based on a sensitivity of the RF coil and signal region information which is information about a signal region where the MR signal is generated; and a digital data obtainer configured to obtain digital data of the k-space by sampling the MR signal based on the determined sampling pattern.