Method in particular for the patient-adaptive B0 homogenization of MR systems using different types of shim coils

摘要

The invention relates to a method and a magnetic resonance tomography system (101), comprising a shim system (GSC1, GSC2, GSC3, GSC4, LSC1, LSC2), which shim system (GSC1, GSC2, GSC3, GSC4, LSC1, LSC2) at least comprises a global shim coil (GSC1, GSC2, GSC3, GSC4) in a region surrounding the bore (103) of the magnetic resonance tomography system (BRG, GSC1, GSC2, GSC3, GSC4, 112x, 112y, 112z) and which shim System (GSC1, GSC2, GSC3, GSC4, LSC1, LSC2) comprises at least one local shim coil (LSC1, LSC2) in a local coil (106) of the magnetic resonance tomography system (101), with a shim control (117), which is configured to set shim currents (IGSC, ILSC, m · IGSC, n · ILSC) for the global shim coil (GSC1, GSC2, GSC3, GSC4) and for the local shim coil (LSC1, LSC2).