Title:
磁場歪み算出装置、方法およびプログラム
Document Type and Number:
Japanese Patent JP6548615
Kind Code:
B2
Abstract:
A region extraction unit extracts first and second shape-invariant regions corresponding to each other from first and second three-dimensional images acquired by an MRI apparatus. A first registration unit acquires a first deformation vector by performing rigid registration between the first and second shape-invariant regions. A second registration unit acquires a second deformation vector by performing non-rigid registration between the first and second three-dimensional images in each shape-invariant region. A magnetic field distortion vector calculation unit calculates a magnetic field distortion vector, which represents relative magnetic field distortion between the first and second three-dimensional images based on the first and second deformation vectors.
Inventors:
Jun Masumoto
Application Number:
JP2016162464A
Publication Date:
July 24, 2019
Filing Date:
August 23, 2016
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
A61B5/055; G06T1/00; G06T7/60
Domestic Patent References:
| JP2015112474A | ||||
| JP201167424A | ||||
| JP201119768A |
Foreign References:
| US20110251479 |
Attorney, Agent or Firm:
Patent Service Corporation Taiyo International Patent Office