Magnetic resonance method and apparatus with nuclear spins type-specific signal suppression

A magnetic resonance apparatus comprising:

• a magnetic resonance scanner having a coil arrangement to expose an examination subject to electromagnetic pulses to excite nuclear spins in the examination subject and to acquire magnetic resonance signals resulting from the excited nuclear spins;
• and
• a control unit that operates said magnetic resonance scanner by (a) exposing an examination subject to a suppression module, comprised of a first set of at least one electromagnetic pulse, that suppresses magnetic resonance signals emanating from the examination subject that originate from nuclear spins of a predetermined type, (b) exposing the examination subject to an acquisition module, comprised of a second set of at least one electromagnetic pulse, after a wait time following exposure to said suppression module, to acquire magnetic resonance measurement data from the examination subject, (c) repeating steps (a) and (b) at least one time, each repetition occurring after a repetition time, and (d) before steps (a), (b) and (c), exposing the examination subject to a spin preparation module, comprised of a third set of at least one electromagnetic pulse, that shifts magnetization of said nuclear spins of said predetermined type into a steady state condition that is maintained during steps (a), (b) and (c).

A magnetic resonance apparatus comprising:

• a magnetic resonance scanner having a coil arrangement to expose an examination subject to electromagnetic pulses to excite nuclear spins in the examination subject and to acquire magnetic resonance signals resulting from the excited nuclear spins;
• and
• a control unit that operates said magnetic resonance scanner by (a) exposing an examination subject to a suppression module, comprising a first set of at least one electromagnetic pulse including at least one RF pulse, to suppress magnetic resonance signals originating from nuclear spins of a predetermined type, (b) exposing the examination subject to an acquisition module, comprised of a second electromagnetic pulse set, after a wait time following exposure of the examination subject to the suppression module, for acquisition of magnetic resonance measurement data, (c) repeating steps (a) and (b) at least one time, each repetition occurring after a reaction time, and (d) selecting a flip angle of said RF pulse in the first suppression module to shift magnetization of the nuclear spins of said predetermined type into a steady state condition that is maintained during the acquisition module and the suppression module in each repetition.