Patent ID: 9091744
Filing Date: 2015-07-28
Classification: G01R

Abstract:
1. A magnetic resonance imaging device, comprising a magnetic field generation unit to generate a static magnetic field, a radio frequency magnetic field, and a gradient magnetic field, a detection unit to detect a nuclear magnetic resonance signal generated from a subject placed in the static magnetic field, a computing unit to create a magnetic resonance spectrum from the nuclear magnetic resonance signal and displaying the magnetic resonance spectrum on a display unit, and a measurement control unit to control operations of the magnetic field generation unit, the detection unit, and the computing unit, and executing spectrum measurement for collecting the nuclear magnetic resonance signals which allow the magnetic resonance spectrum to be created, the measurement control unit comprising, a region selection unit to apply at least one pair of a region selective inversion radio frequency magnetic field and a slice selective gradient magnetic field, selectively inverting nuclear magnetization included only in a predetermined region, while repeating the spectrum measurement for a predetermined number of times, with changing the echo time at predetermined shift intervals, and a suppression unit to apply a spectrum selective inversion radio frequency magnetic field for selectively inverting only the nuclear magnetization included in a predetermined compounds, at least one of before and after applying the region selective inversion radio frequency magnetic field and the slice selective gradient magnetic field, and simultaneously applying a phase dispersion gradient magnetic field and a phase refocusing gradient magnetic field, being identical in the magnitude of application amount and different in application polarity, before and after the spectrum selective inversion radio frequency magnetic field, respectively.