in a method and magnetic resonance imaging apparatus wherein magnetic resonance signals are simultaneously received from an examination subject by multiple reception coils , a single , uninterrupted pulse sequence is executed which includes reference scans of the subject with a first sequence kernel that is optimized for coil sensitivity calibration , immediately followed by a series of accelerated image scans with a second sequence kernel , different from the first sequence kernel , that is optimized for imaging . coil sensitivity maps for the respective coils are calculated from the data acquired in the reference scans , and an image of the subject is reconstructed by operating on the image data with a parallel reconstruction algorithm employing the calculated coil sensitivity maps .