US 10,473,742 B2 · Magnetic resonance imaging apparatus and method of generating magnetic resonance image by using the same

Abstract

A magnetic resonance imaging apparatus includes a radio frequency (RF) controller configured to, during a repetition time (TR) period among TR periods, apply at least one RF pulse corresponding to a first slice to an object, and apply a navigator RF pulse corresponding to a second slice adjacent to the first slice to the object, a data obtainer configured to, during the TR period, obtain first k-space data corresponding to the applied at least one RF pulse, and obtain second k-space data corresponding to the applied navigator RF pulse, and an image processor configured to generate navigator images, based on pieces of second k-space data that are obtained during the TR periods, the pieces comprising the second k-space obtained during the TR period, correct the first k-space data, based on the navigator images, and generate a magnetic resonance image of the first slice, based on the corrected first k-space data.

Claims20

Dependent claims

A magnetic resonance imaging (MRI) apparatus for generating a magnetic resonance (MR) image during repetition time (TR) periods, the MRI apparatus comprising:

a radio frequency (RF) controller configured to, during each TR period of the TR periods:
apply a plurality of RF pulses corresponding to a first single slice to an object;
and
apply a single navigator RF pulse corresponding to a second single slice adjacent to the first single slice to the object after the plurality of RF pulses are applied;
a signal transceiver configured to, during each TR period of the TR periods:
obtain first k-space data corresponding to the applied plurality of RF pulses;
and
obtain second k-space data corresponding to the applied single navigator RF pulse;
and
an image processor configured to:
generate navigator images, based on pieces of the second k-space data that are obtained during the TR periods, the pieces comprising the second k-space data obtained during each TR period of the TR periods;
correct the first k-space data, based on the navigator images;
and
generate the MR image of the first single slice, based on the corrected first k-space data.

11 more elements

A method of generating a magnetic resonance (MR) image during repetition time (TR) periods, the method being performed by a magnetic resonance imaging (MRI) apparatus, and the method comprising:

applying a plurality of radio frequency (RF) pulses corresponding to a first single slice to an object, and applying a single navigator RF pulse corresponding to a second single slice adjacent to the first single slice to the object after the plurality of RF pulses are applied, during each TR period of the TR periods;
obtaining first k-space data corresponding to the applied plurality of RF pulses, and obtaining second k-space data corresponding to the applied single navigator RF pulse, during each TR period of the TR periods;
generating navigator images, based on pieces of the second k-space data that are obtained during the TR periods, the pieces comprising the second k-space data obtained during each TR period of the TR periods;
correcting the first k-space data, based on the navigator images;
and
generating the MR image of the first single slice, based on the corrected first k-space data.

3 more elements

Dependencies are inferred from the claim text.

Magnetic resonance imaging apparatus and method of generating magnetic resonance image by using the same

Life of this patent

Magnetic resonance imaging apparatus and method of generating magnetic resonance image by using the same

Life of this patent

Abstract

Claims20