Keywords: RF Arrays & Systems, High-Field MRI
Motivation: Improved RF coil performance is needed to realize the gains from UHF body imaging.
Goal(s): Design a 7T body array with improved stability and increased transmit/receive performance.
Approach: A 32 channel loop-dipole (32LD) array was constructed with a shield allowing for on board electronics. Dipoles were transceivers while loops were coupled in groups of three on transmit while receiving separately. Comparisons were made with an existing 16LD array.
Results: The 32LD is more stable, has a lower flatter z-profile on transmit, 20% higher central SNR and supports parallel imaging on all axes
Impact: The new 32LD array provides a more robust platform for clinical translation of UHF body imaging while approaching the theoretical gains in SNR and improved parallel imaging performance enabling increased spatiotemporal resolutions at 7T.
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