Patent ID: 9713449
Date: 2017-07-25
CPC Classifications: A61B,G01R

Claim:
1. A magnetic resonance imaging device comprising, a static magnetic field generator which generates a static magnetic field in imaging space where a subject is placed, a gradient magnetic field generator which applies a gradient magnetic field to the imaging space, a radio frequency emitter which irradiates the imaging space with an RF magnetic field pulse, a receiver which receives a nuclear magnetic resonance signal generated from the subject, and a controller which controls the gradient magnetic field generator, the radio frequency emitter, and the receiver, so as to execute predetermined pulse sequences, wherein the pulse sequences includes a navigator sequence for detecting respiratory displacement of the subject, and a real imaging sequence for taking an image of the subject, the controller executing one or more programs of instructions to configure the controller to comprise: a respiratory movement image generator which generates and displays an image showing a temporal change of respiratory displacement based on nuclear magnetic resonance signals acquired by executing the navigator sequence, a breath-hold confirmation accepting part which accepts a confirming operation from a operator when the operator views the image displayed by the respiratory movement image generator and confirms a state of breath holding, a real imaging execution part which executes the real imaging sequence at the timing when the breath-hold confirmation accepting part accepts the confirming operation, and a retake accepting part which obtains and displays a difference in respiratory displacement between, for each real imaging sequence that is repeated more than once, immediately before and after the real imaging sequence, and accepts from the operator an instruction whether or not a retake is performed as to the real imaging sequence for the present time, and upon accepting the instruction for the retake, the retake accepting part sets the imaging position of the real imaging sequence for the present time as the imaging position of the next real imaging sequence.