Keywords: Low-Field MRI, Low-Field MRI, Fat suppression, Dixon, bSSFP
Motivation: Fat suppression is challenging at low field strengths due to small fat frequency shifts. Dixon imaging with bSSFP offers an attractive solution by combining the robust fat-water separation performance of Dixon with the high SNR and scan speed of bSSFP sequence. However, the distinctive spectral response of bSSFP signals was overlooked in existing Dixon implementations.
Goal(s): This study aims to improve fat suppression with bSSFP sequence at low field by incorporating bSSFP signal model in a two-point Dixon algorithm.
Approach: Numerical simulations and phantom experiments were performed at 0.55T.
Results: Results suggest that integration of bSSFP signal model can improve fat suppression.
Impact: Our proposed bSSFP-based two-point Dixon method could improve imaging with fat suppression at low field, which has been a challenging task due to small fat frequency shift and low SNR.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords