MAGNETIC RESONANCE IMAGING METHOD INVOLVING SUB-SAMPLING AND SYSTEM

摘要

PPROBLEM TO BE SOLVED: To provide a magnetic resonance imaging method in which sampled magnetic resonance signals are received by a receiving antenna having a spatial sensitivity profile, the sampling in the k space corresponds to the predetermined field of view in the geometrical space, and folded-over images having folded-over pixel values are reconstructed from the sampled magnetic resonance signals. PSOLUTION: In the magnetic resonance imaging method, magnetic resonance signal samples are received for a predetermined field of view by the receiving antenna having the spatial sensitivity profile. The sampling in the k space corresponds to the predetermined field of view in the geometrical space. Folded-over images having folded-over pixel values are reconstructed from the sampled magnetic resonance signals. Pixel contributions for spatial positions within the predetermined field of view are calculated from the folded-over pixel values and the spatial sensitivity profile of the receiving antenna. The magnetic resonance image is formed from the pixel contributions for spatial positions within the predetermined field of view. Thus, aliasing or fold-over artifacts caused by a field of view that is too small are avoided. PCOPYRIGHT: (C)2010,JPO&INPIT