Keywords: High-Field MRI, High-Field MRI, RF Arrays & Systems
Motivation: Traditional RF shimming and parallel transmission methods are limited by current patterns constrained by the basic coil shapes and the number of transmit coils, highlighting the need for new techniques.
Goal(s): A novel RF splitting network, namely adaptive RF splitter, that can deliver any desired RF signal to the coils despite the coil structure, geometry or coupling.
Approach: Utilized a novel architecture allowing for adaptive control of current ratios at the coil inputs to compensate for coil coupling.
Results: The adaptive RF splitter accurately optimizes current ratios, achieving maximal B1+ and SAR efficiencies in MRI coils.
Impact: A method that can directly control the current on the coil was proposed, even in cases of strong coupling between coils. This eliminates the need for specific Tx coil geometry, layout, or structure, and may enable superior pTx performance.
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