Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences
发明人:
申请号：
EP15911837.1
公开号：
EP3398511A4
申请日:
2015.12.30
申请国别(地区):
EP
年份:
2019
代理人:
摘要：
Provided are a magnetic resonance chemical-shift-encoded imaging method, apparatus, and device, belonging to the technical field of magnetic resonance imaging. The method comprises: in a phasor-error plot established on the basis of a two-point magnetic resonance signal model, determining to be an initial seed point a pixel having a unique phasor and causing said plot to reach a minimal local value； according to the initial seed point, estimating the phasor value of a to-be-estimated pixel to obtain a field map； mapping and merging the field map at the highest resolution to obtain a reconstructed field map； determining a reconstructed seed point from the reconstructed field map, and estimating the reconstructed seed point to obtain the phasor value of the reconstructed to-be-estimated pixel； according to the reconstructed seed point and the phasor value of the reconstructed to-be-estimated pixel, obtaining two separate images having predetermined components. In the method, a region simultaneously containing two components is identified as a seed point, eliminating the deviation caused by phasor-value jump at high resolution and ensuring the correctness of the seed point ultimately selected.
