Although CrCEST MRI is increasingly employed in muscle imaging, its measurement depends on the RF saturation duration (Ts) and relaxation delay (Td). This study evaluated the quasi-steady-state (QUASS) algorithm for fast and robust CrCEST measurement. Briefly, CrCEST experiments were performed at 3T under two representative imaging conditions. Both phantom and volunteer experiments showed that the routine CrCEST increased significantly with Ts and Td and were significantly smaller than the corresponding QUASS indices. In comparison, the QUASS CrCEST meaurement showed little dependence on the scan protocol, establishing the robustness and accuracy of QUASS CrCEST muscle MRI.
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