Patent ID: 8120359
Filing Date: 2012-02-21
Classification: A61B,G01R

Abstract:
1. A method for determining a pulse sequence for feeding a radio-frequency (RF) radiating coil, having at least one transmit channel associated therewith, of a magnetic resonance apparatus that also comprises gradient coils, said method comprising the steps of: in a processor, specifying a feed sequence, determined for a plurality of time steps of said pulse sequence, for operating said gradient coils for time-dependent selection of regions of at least a selected slice of a subject in a magnetic resonance examination of the subject; in said processor, automatically solving a non-linear equation system to obtain drive parameters for each transmit channel of said RF radiating coil for each of said time steps, with specification of a desired target magnetization in the subject, and dependent on said feed sequence specified for said gradient coils; and in said processor, employing, as said non-linear equation system, a non-linear equation system having discrete space and time variables that, in addition to equations resulting from the Bloch equation, which are non-linear with regard to feed parameters thereof, also includes at least one additional equation describing boundary conditions for said magnetic resonance examination.