Method for correcting a magnetic resonance mapping

A magnetic resonance device configured to:

• capture first magnetic resonance signals;
• capture second magnetic resonance signals, wherein the first magnetic resonance signals and the second magnetic resonance signals are provoked in each case by nuclear spin excitations of fat and water in an examination object, wherein the nuclear spin excitations of fat and water are in phase during the capturing of the first magnetic resonance signals, and
• wherein the nuclear spin excitations of fat and water are in opposed phase during the capturing of the second magnetic resonance signals;
• determine a B0 field map based on the first magnetic resonance signal and the second magnetic resonance signal;
• capture further magnetic resonance signals;
• determine the at least one magnetic resonance mapping, the determining of the at least one magnetic resonance mapping comprising reconstructing the further magnetic resonance signals;
• and
• correct the at least one magnetic resonance mapping based on the B0 field map.

A magnetic resonance (MR) positron emission tomography (PET) device that is configured to:

• capture first magnetic resonance signals;
• capture second magnetic resonance signals, wherein the first magnetic resonance signals and the second magnetic resonance signals are provoked in each case by nuclear spin excitations of fat and water in an examination object, wherein the nuclear spin excitations of fat and water are in phase during the capturing of the first magnetic resonance signals, and
• wherein the nuclear spin excitations of fat and water are in opposed phase during the capturing of the second magnetic resonance signals;
• determine a B0 field map based on the first magnetic resonance signals and the second magnetic resonance signals;
• capture further magnetic resonance signals;
• determine the at least one magnetic resonance mapping, the determination of the at least one magnetic resonance mapping comprising reconstruction of the further magnetic resonance signals;
• correct the at least one magnetic resonance mapping based on the B0 field map;
• capture positron emission tomography signals;
• and
• capture measured data for correction of attenuation of the positron emission tomography signals,
• wherein the capture of the measured data for correction of the attenuation of the positron emission tomography signals comprises capture of the first magnetic resonance signals and the second magnetic resonance signals.