Title:
SIGNAL SATURATION METHOD FOR ACHIEVING SPATIAL SELECTION UNDER NON-UNIFORM FIELD, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/087249
Kind Code:
A1
Abstract:
A signal saturation method for achieving spatial selection under a non-uniform field, and a medium. The method comprises: under a non-uniform field, according to the distance between a region to be saturated and a surface coil, setting corresponding magnetization preparing modules (S1); transmitting by means of the surface coil a first main pulse sequence, or successively transmitting a first magnetization preparing module and the first main pulse sequence, so as to acquire a first echo signal and store same as a first data set (S2); successively transmitting by means of the surface coil a second magnetization preparing module and a second main pulse sequence, so as to acquire a second echo signal and store same as a second data set (S3); and processing the first data set and the second data set, so as to saturate a signal in said region, thus achieving spatial selection (S4). The method has the advantage of insensitivity to the non-uniformity of a main magnetic field, the intensity of a radio frequency field, the sizes of saturation regions, and position changes, and is more convenient in practical use, thus achieving a more stable and accurate signal saturation effect.
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Inventors:
WANG CHAO (CN)
LUO HAI (CN)
WU MIN (CN)
CHEN XIAO (CN)
WU ZIYUE (CN)
LUO HAI (CN)
WU MIN (CN)
CHEN XIAO (CN)
WU ZIYUE (CN)
Application Number:
PCT/CN2022/130114
Publication Date:
May 02, 2024
Filing Date:
November 04, 2022
Export Citation:
Assignee:
WUXI MARVEL STONE HEALTHCARE CO LTD (CN)
International Classes:
G01R33/387
Foreign References:
| CN114167331A | 2022-03-11 | |||
| CN114236442A | 2022-03-25 | |||
| CN103983929A | 2014-08-13 | |||
| CN106889988A | 2017-06-27 | |||
| CN111157931A | 2020-05-15 | |||
| CN114200367A | 2022-03-18 | |||
| US20160109612A1 | 2016-04-21 | |||
| US20170307699A1 | 2017-10-26 |
Attorney, Agent or Firm:
CHENGDU DINGFENG PATENT AGENCY (GENERAL PARTNER) (CN)
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