Patent ID: 11914017
Assignee: FUJIFILM HEALTHCARE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A magnetic resonance imaging apparatus, comprising:
a static magnetic field generator configured to apply a static magnetic field to an imaging space;
a high-frequency magnetic field irradiation device configured to irradiate atomic nuclear spins of a subject disposed in the imaging space with a high-frequency magnetic field;
a gradient magnetic field generator configured to apply a gradient magnetic field in two predetermined directions in order to apply frequency encoding and phase encoding to the atomic nuclear spins;
a reception device configured to receive a nuclear magnetic resonance signal generated by the atomic nuclear spins;
an image reconstruction unit configured to reconstruct an image of the subject by performing two-dimensional Fourier transform on a plurality of the nuclear magnetic resonance signals disposed in a measurement space; and
an image processing unit configured to perform processing of increasing a resolution on the reconstructed image by using a point spread function, wherein
the image processing unit includes an acquisition unit configured to acquire the point spread function, and a storage unit configured to store the acquired point spread function, and
the acquisition unit causes the high-frequency magnetic field irradiation device to irradiate a phantom or the subject disposed in the imaging space with the high-frequency magnetic field, the acquisition unit causes the reception device to acquire the nuclear magnetic resonance signal from the phantom or the subject without applying the frequency encoding and the phase encoding, the acquisition unit performs Fourier transform on the acquired nuclear magnetic resonance signal, and stores the obtained signal in the storage unit as the point spread function, and
the image processing unit generates an image with a higher resolution by performing deconvolution calculation of the image of the subject and the point spread function.