METHOD AND APPARATUS FOR GENERATING A SPECIFIC FLIP ANGLE DISTRIBUTION IN MRI

摘要

The present invention provides a method and apparatus for generating a specific flip angle distribution in magnetic resonance imaging; the method uses a plurality of RF transmission coils combined with linear and nonlinear spatial encoding magnetic fields to generate a homogeneous flip angle distribution.

主权项

1. A method for generating a flip angle spatial distribution of magnetic resonance imaging, comprising:
incorporating the usage of one or a plurality of spatial encoding magnetic fields and the usage of a plurality of RF coils to generate a specific spatial distribution of flip angle, wherein the plurality of RF coils excite a B1+ field jointly, the ratio of signal amplitudes of the plurality of RF coils is kept invariant during the excitation process, and the phase relationship of signals from the plurality of RF coils is kept invariant during the excitation process.