| 摘要 |
A system and method for accelerated magnetic resonance imaging (MRI) using spectral sensitivity information are provided. The MRI system is used to acquire k-space data from a subject that when positioned in the main magnetic field of the MRI system causes inhomogeneities in the main magnetic field. Spectral sensitivity information is derived from the acquired k-space data. In general, the spectral sensitivity information relates specific resonance frequencies to distinct spatial locations in the main magnetic field of the MRI system. One or more images of the subject may be reconstructed from the acquired k-space data using the produced spectral sensitivity information to spatially encode the acquired k-space data. By using the spectral sensitivity information to provide spatial-encoding, the data acquisition can be accelerated, for example, by undersampling k-space. In addition, using the provided system and method, clinically viable images can be obtained in the presence of severe off-resonance. |
