Patent ID: 11892533
Assignee: FUJIFILM HEALTHCARE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. A control method of a magnetic resonance imaging device comprising: a measurement unit configured to collect a nuclear magnetic resonance signal from a subject using a pulse sequence; and an image calculation unit configured to generate an image by using the nuclear magnetic resonance signal collected by the measurement unit, the control method comprising:
a measuring step of causing the measurement unit to execute a pulse sequence including performing, after applying one excitation RF pulse, a main scan for measuring an image reconstruction echo signal, and a navigator scan for measuring a distortion correction echo signal, an applied polarity of phase encoding in the navigational scan being opposite to an applied polarity of phase encoding in the main scan; and
an image processing step of calculating a displacement amount of a main scan image, by using an echo signal obtained by the navigator scan, and correcting distortion of the main scan image by using the displacement amount, to cause a corrected image to be output.