MAGNETIC RESONANCE IMAGING DEVICE, MAGNETIC RESONANCE IMAGING METHOD AND VERSE PULSE COMPRESSION RATE DETERMINATION METHOD

摘要

In order to improve image quality while reducing the SAR regardless of imaging conditions such as slice position, phase encoding amount and difference in RF pulse type, this VERSE method determines the compression rate of the VERSE pulse depending on the imaging conditions. To this end, this magnetic resonance imaging device is provided with an imaging sequence generating unit for generating an imaging sequence by applying the imaging conditions to a preset pulse sequence, and an imaging unit which performs measurements in accordance with the imaging sequence and reconstructs an image from the acquired echo signal. The pulse sequence includes a VERSE pulse which comprises a high-frequency magnetic field pulse and a slice selection gradient magnetic field pulse, and the imaging sequence generating unit is provided with a VERSE pulse design unit which determines the compression rate of the VERSE pulse depending on prescribed imaging conditions and applies the determined compression rate when generating the imaging sequence.