Keywords: MR Fingerprinting, MR Fingerprinting, Kidney motion correction
Motivation: We aim to develop 3D multi-property mapping for quantitative tissue characterization of the kidneys, enabling objective evaluation of focal disease.
Goal(s): To achieve whole-kidney coverage mapping of T1, T2, T2* and PDFF in a single free-breathing scan.
Approach: 3D free-breathing stack-of-rosettes MRF data were acquired and reconstructed with Low Rank Motion Correction, regularized with a dictionary-patch based approach (LRMC-DP).
Results: The proposed 3D free-breathing LRMC-DP MRF framework reduces respiratory motion artefacts, improving precision over conventional Low Rank MRF and producing similar T1/T2/T2*/PDFF maps to standard 2D breath-held MOLLI, T2prep-bSSFP and 6-echo GRE. In one patient, benign cysts were identified with the proposed LRMC-DP.
Impact: 3D mapping of T1/T2/T2*/PDFF over the whole kidney is feasible with the proposed LRMC-DP in a single ~9 minute free-breathing scan. This method could enable objective characterization of focal diseases in the kidney, such as the classification of indeterminate masses.
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