Title:
磁気共鳴イメージング装置及び磁気共鳴イメージング方法
Document Type and Number:
Japanese Patent JP7245076
Kind Code:
B2
Abstract:
In one embodiment, an MRI apparatus includes: a scanner including at least two gradient coils; and processing circuitry. The processing circuitry is configured to: cause the scanner to acquire k-space data for correction in a band-shaped two-dimensional k-space along a readout direction, or in a columnar three-dimensional k-space along a readout direction, while changing rotation angles, each of the rotation angles corresponds to the readout direction, generate correction data for correcting an error due to a gradient magnetic field generated by the gradient coils, by using the acquired k-space data for correction, and (A)cause the scanner to acquire k-space data for reconstruction based on a radial acquisition method, while correcting the gradient magnetic field by using the correction data, and generate an image by reconstructing the acquired k-space data for reconstruction, or (B) cause the scanner to acquire k-space data for reconstruction based on the radial acquisition method, correct the k-space for reconstruction data by using the correction data, and generate an image by reconstructing the corrected k-space data for reconstruction.
Inventors:
Hideaki Kuchina
Hidenori Takeshima
Hidenori Takeshima
Application Number:
JP2019037412A
Publication Date:
March 23, 2023
Filing Date:
March 01, 2019
Export Citation:
Assignee:
Canon Medical Systems Corporation
International Classes:
A61B5/055
Domestic Patent References:
| JP2005152175A | ||||
| JP2018167025A |
Foreign References:
| WO2015033779A1 | ||||
| WO2008152937A1 |
Attorney, Agent or Firm:
Patent Attorney Tokyo International Patent Office