Title:
MAGNETIC RESONANCE IMAGING APPARATUS AND IMAGE PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/039112
Kind Code:
A1
Abstract:
The present invention provides a novel aliasing removal technology that enables suppression of noise amplification in an aliasing removal calculation in parallel imaging and the like. By taking advantage of the fact that the phase of an image (a true image that is one of a plurality of images) to be separated from an image of the present imaging acquired in a state in which a plurality of images are superimposed on one another is basically the same as the phase of an image acquired at low resolution, a phase difference is determined between the phase of a low-resolution image and the phase of an image of the present imaging, and then a true image is separated through calculation using said phase difference and a pixel value of the image of the present imaging. In this process, low-resolution images are respectively acquired by a plurality of reception coils, and a true image is calculated after the low-resolution images are multiplied by a complex number for minimizing the noise amplification.
Inventors:
ITOU KOUSUKE (JP)
KUROKAWA SHINJI (JP)
TAKIZAWA MASAHIRO (JP)
KUROKAWA SHINJI (JP)
TAKIZAWA MASAHIRO (JP)
Application Number:
PCT/JP2018/025583
Publication Date:
February 28, 2019
Filing Date:
July 05, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G01N24/00; A61B5/055
Domestic Patent References:
| WO2013054718A1 | 2013-04-18 |
Foreign References:
| JP2008006117A | 2008-01-17 | |||
| JP2017070386A | 2017-04-13 | |||
| JP2010233907A | 2010-10-21 | |||
| JP2004154401A | 2004-06-03 | |||
| US20030001571A1 | 2003-01-02 | |||
| JPH04357935A | 1992-12-10 |
Attorney, Agent or Firm:
SANNOZAKA PATENT LAW FIRM (JP)
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