Method for operating a magnetic resonance imaging scanner, magnetic resonance imaging scanner, computer program and storage medium with the computer program

A method for operating a magnetic resonance imaging scanner, the magnetic resonance imaging scanner including a field magnet configured to generate a static homogeneous magnetic field B0 and a transmitter configured to excite nuclear spins in a patient, wherein the method comprises:

• ascertaining 3D data based on metadata and image data for the patient;
• providing target parameters, wherein the target parameters include excitation of nuclear spins to be achieved;
• ascertaining a spectrally selective excitation pulse for emission by the transmitter based on the 3D data, wherein the spectrally selective excitation pulse is configured to generate the target parameters;
• and
• outputting the spectrally selective excitation pulse via the transmitter, wherein
• the metadata includes at least one of a body model, a body atlas, landmarks for landmark recognition, or patient information.

A method for operating a magnetic resonance imaging scanner, the magnetic resonance imaging scanner including a field magnet configured to generate a static homogeneous magnetic field B0 and a transmitter configured to excite nuclear spins in a patient, wherein the method comprises:

• providing 3D data from the patient;
• ascertaining at least a B0 field map based on the 3D data from the patient;
• providing target parameters, wherein the target parameters include excitation of nuclear spins to be achieved;
• ascertaining a spectrally selective excitation pulse for emission by the transmitter based on the B0 field map, wherein the spectrally selective excitation pulse is configured to generate the target parameters;
• outputting the spectrally selective excitation pulse via the transmitter;
• measuring a B0 distribution of the static homogeneous magnetic field B0;
• ascertaining a deviation between the B0 field map and the B0 distribution;
• and
• in response to the deviation being greater than a threshold value,
• re-ascertaining the spectrally selective excitation pulse based on the deviation, and
• outputting the re-ascertained spectrally selective excitation pulse.

A magnetic resonance imaging scanner comprising:

• a field magnet configured to generate a static homogeneous magnetic field B0;
• a transmitter configured to excite nuclear spins in a patient;
• and
• at least one processor configured to execute computer-readable instructions to
• ascertain a susceptibility map of the patient based on image data for the patient;
• provide 3D data from the patient, wherein the 3D data includes the susceptibility map and a body property of the patient,
• provide target parameters, wherein the target parameters include excitation of nuclear spins to be achieved,
• ascertain a spectrally selective excitation pulse based on the susceptibility map and the body property included in the 3D data from the patient, wherein the spectrally selective excitation pulse is configured to generate the target parameters, and
• output the spectrally selective excitation pulse via the transmitter.

A magnetic resonance imaging scanner comprising:

• a field magnet configured to generate a static homogeneous magnetic field B0;
• a transmitter configured to excite nuclear spins in a patient;
• and
• at least one processor configured to execute computer-readable instructions to ascertain 3D data based on metadata and image data for the patient,
• provide target parameters, wherein the target parameters include excitation of nuclear spins to be achieved,
• ascertain a spectrally selective excitation pulse for emission by the transmitter based on the 3D data, wherein the spectrally selective excitation pulse is configured to generate the target parameters, and
• output the spectrally selective excitation pulse via the transmitter, wherein
• the metadata includes at least one of a body model, a body atlas, landmarks for landmark recognition, or patient information.

A magnetic resonance imaging scanner comprising:

• a field magnet configured to generate a static homogeneous magnetic field B0;
• a transmitter configured to excite nuclear spins in a patient;
• and
• at least one processor configured to execute computer-readable instructions to provide 3D data from the patient,
• ascertain at least a B0 field map based on the 3D data from the patient,
• provide target parameters, wherein the target parameters include excitation of nuclear spins to be achieved,
• ascertain a spectrally selective excitation pulse for emission by the transmitter based on the B0 field map, wherein the spectrally selective excitation pulse is configured to generate the target parameters,
• output the spectrally selective excitation pulse via the transmitter,
• measure a B0 distribution of the static homogeneous magnetic field B0,
• ascertain a deviation between the B0 field map and the B0 distribution, and
• in response to the deviation being greater than a threshold value,
• re-ascertain the spectrally selective excitation pulse based on the deviation, and
• output the re-ascertained spectrally selective excitation pulse.