Title:
EDDY-CURRENT CORRECTION METHOD AND APPARATUS, MOBILE TERMINAL AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/100373
Kind Code:
A1
Abstract:
An eddy-current correction method and apparatus, a mobile terminal and a readable storage medium. Said method comprises: step S1: reading gradient-recalled echo sequence by means of bipolarity, so as to acquire a multi-echo image; step S2: estimating a first-order term coefficient of an extra phase term introduced by an eddy-current in the acquired multi-echo image; step S3: removing the estimated first-order term coefficient, and estimating a zero-order term coefficient of the extra phase term introduced by the eddy-current in the collected multi-echo image; step S4: removing, according to the estimated first-order term coefficient and the zero-order term coefficient, an error of the extra phase term introduced by the eddy-current. The eddy-current correction method can remove the phase error caused by the eddy-current in the acquired image, thereby ensuring the correctness of the subsequent water-fat separation algorithm result.
Inventors:
ZOU CHAO (CN)
CHENG CHUANLI (CN)
LIU XIN (CN)
ZHENG HAIRONG (CN)
CHENG CHUANLI (CN)
LIU XIN (CN)
ZHENG HAIRONG (CN)
Application Number:
PCT/CN2017/113085
Publication Date:
May 31, 2019
Filing Date:
November 27, 2017
Export Citation:
Assignee:
SHENZHEN INST ADV TECH (CN)
International Classes:
G01R33/565
Foreign References:
| CN1171921A | 1998-02-04 | |||
| CN107290700A | 2017-10-24 | |||
| CN106353706A | 2017-01-25 | |||
| CN105809661A | 2016-07-27 | |||
| US20020048340A1 | 2002-04-25 |
Other References:
See also references of EP 3736595A4
Attorney, Agent or Firm:
HENSEN INTELLECTUAL PROPERTY FIRM (CN)
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