Magnetic resonance imaging apparatus, magnetic resonance imaging method, and VERSE pulse compression ratio determination method

摘要

Regardless of imaging conditions such as slice position, phase encoding amount, and difference in RF pulse type, image quality is improved while reducing SAR. Therefore, in the VERSE method, the compression rate of the VERSE pulse is determined according to the imaging conditions. Therefore, an imaging sequence generation unit that generates an imaging sequence by applying imaging conditions to a predetermined pulse sequence, and an imaging unit that executes measurement according to the imaging sequence and reconstructs an image from the acquired echo signal, The pulse sequence includes a VERSE pulse including a high-frequency magnetic field pulse and a slice selection gradient magnetic field pulse, and the imaging sequence generation unit determines a compression rate of the VERSE pulse according to a predetermined imaging condition. A pulse design unit is provided, and the determined compression rate is applied when generating the imaging sequence.