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MAGNETIC RESONANCE IMAGING APPARATUS, MAGNETIC RESONANCE IMAGING METHOD, AND VERSE PULSE COMPRESSION RATE DETERMINATION METHOD
MAGNETIC RESONANCE IMAGING APPARATUS, MAGNETIC RESONANCE IMAGING METHOD, AND VERSE PULSE COMPRESSION RATE DETERMINATION METHOD
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机译:磁共振成像装置,磁共振成像方法和反向脉冲压缩率测定方法
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摘要
In order to improve image quality while reducing an SAR regardless of an imaging condition such as a slice position, a phase-encoding amount, and an RF pulse type difference, the VERSE method determines a VERSE pulse compression rate according to the imaging condition. Hence, an imaging sequence generation section generating an imaging sequence by applying an imaging condition to a predetermined pulse sequence and an imaging section executing measurement according to the imaging sequence to reconstruct an image from the obtained echo signal are provided. The pulse sequence includes a VERSE pulse comprised of a high-frequency magnetic field pulse and a slice selective gradient magnetic field pulse. The imaging sequence generation section is provided with a VERSE pulse design part determining a compression rate of the VERSE pulse according to the predetermined imaging condition and applies the determined compression rate to generate the imaging sequence.
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