Patent ID: 9714994
Date: 2017-07-25
CPC Classifications: G01R

Claim:
1. A magnetic resonance imaging apparatus comprising: a static magnetic field generation unit; a gradient magnetic field generation unit that gives a magnetic field gradient to a static magnetic field generated by the static magnetic field generation unit; a signal transmission unit that irradiates an examination target placed in the static magnetic field with a high-frequency magnetic field; a signal receiving unit that receives an echo signal emitted from the examination target due to nuclear magnetic resonance; and a signal processing unit that processes the echo signal to reconstruct an image of the examination target, wherein the signal processing unit includes an approximation function generation unit that generates an approximation function that, for each of at least two temporally divided sections of a gradient magnetic field pulse waveform to which the magnetic field gradient is given by the gradient magnetic field generation unit, approximates the gradient magnetic field pulse waveform and a correction unit that corrects measurement-space coordinates, at which the echo signal is arranged, using the approximation function.