METHOD AND MAGNETIC RESONANCE APPARATUS FOR DETERMINING ABSOLUTE RECEIVE SENSITIVITY MAPS FOR RECEPTION COILS

摘要

In a method and magnetic resonance apparatus for determining absolute three-dimensional reception sensitivity maps for reception coils in a scanner of the magnetic resonance, in particular a scanner having a basic magnetic field strength of at least 3 T, in the presence of a subject under examination that affects the reception sensitivity, spatially resolved subject parameters are determined, which specify electromagnetic properties of the subject under examination, and coil-geometry parameters are determined, which specify the spatial arrangement of the reception coils in the magnetic resonance scanner. The reception sensitivity maps are determined by simulation in a model specified by the subject parameters and the coil-geometry parameters.

主权项

1. A method for determining absolute three-dimensional reception sensitivity maps for reception coils of a magnetic resonance scanner of a magnetic resonance apparatus, wherein said scanner comprises a basic field magnet that generates a basic magnetic field, said method comprising:
providing a computer with spatially resolved subject parameters that specify electromagnetic properties of a subject to be examined; in said computer, determining coil geometry parameters that specify a spatial arrangement of the reception coils in the scanner; in said computer, determining reception sensitivity maps of said reception coils by simulation in a model specified by the subject parameters and the coil geometry parameters; and making the reception sensitivity maps available from the computer in electronic form as a data file.