Keywords: Myocardium, Quantitative Imaging, Dictionary matching; Myocardial; T1; T2; T1ρ; Fat Fraction;
Motivation: Simultaneous cardiac parameters and fat quantification enables comprehensive myocardial tissue characterization. However, the water-fat MR fingerprinting techniques have complex image processing.
Goal(s): To develop a cardiac water-fat multi-parametric mapping technique with single-shot Cartesian acquisition and dictionary matching.
Approach: A novel Dixon-MultiMap sequence is proposed integrating the hybrid dual-echo Dixon readout into the multi-parametric mapping framework. The hybrid dual-echo data forms a four-echo dataset for accurate fat fraction and B0 estimations, and the derived B0 map is used as prior information for dual-echo water-fat separation of the multi-contrast images.
Results: Fat fraction and water-only T1, T2, T1ρ can be accurately estimated using Dixon-MultiMap.
Impact: The proposed Dixon-MultiMap achieves simultaneous multiple parameters and fat quantification with single-shot Cartesian acquisition and dictionary matching, which has simplified post-processing and holds great potential for clinical translation.
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