1. An MR imaging system for generating a multi-band (MB) image of a region of interest, comprising: a radio frequency (RF) signal generator and a magnetic field gradient generator which are together configured to provide a series of RF pulse and magnetic field gradient sequences for acquisition of MB image data, and an image processing unit configured to generate the MB image of the region of interest based on the MB image data, wherein the series of RF pulse and magnetic field gradient sequences comprises at least one adaptive acquisition parameter.