Keywords: RF Arrays & Systems, Simulations, Antenna array
Motivation: The multi-channel RF coil scheme for 14T head imaging has not been defined yet.
Goal(s): Our goal was to optimize the number of elements in the dipole antenna array in order to achieve optimal performance at 14T.
Approach: We obtained the $$$\text{B}_{1}^{+}$$$ field distributions and SAR distributions of dipole antenna arrays with 8, 12, 16, and 20 channels through electromagnetic simulation, and compared their performances.
Results: The results showed that the 12-channel dipole antenna array exhibits superior performance.
Impact: The number of channels in an RF coil at ultrahigh fields requires a trade-off between RF field uniformity and inter-cell coupling; 12-channel dipole antenna array serves as a suitable reference coil for 14T head imaging.
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