A 70-channel parallel transmit RF coil array intended for focused RF applications was designed and simulated at four frequencies (298 MHz, 447 MHz, 900 MHz and 1200 MHz) using a Ella body model. A previously proposed maxSAR algorithm was used to focus SAR in target regions while limiting the SAR in background tissues. Spatial maps of optimized SAR distribution are shown for several target locations and all frequencies. SAR distributions together with temperature and CEM43 maps suggest that clinical levels of focused hyperthermia can be achieved using high channel count parallel transmit RF coils and the maxSAR algorithm.
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