1. A magnetic resonance imaging (MRI) system, comprising: a magnetic resonance imaging scanner; a signal processing system in communication with said magnetic resonance imaging scanner to receive a plurality of signals for forming at least one magnetic resonance image of a subject under observation; a data storage unit in communication with said signal processing system, wherein said data storage unit contains database data corresponding to a soft tissue region of said subject under observation, wherein said database data includes information to identify at least one soft tissue substructure of said soft tissue region of said subject under observation; and wherein said signal processing system is adapted to process said plurality of signals received from said magnetic resonance imaging scanner of said subject under observation to automatically identify said at least one soft tissue substructure of said soft tissue region of said subject under observation using said database data.