In-Vivo RF Receiver Sensitivity Measurement using Phase-Based B1+ Mapping on a Reverse-Oriented Subject

Seung-Kyun Lee¹, William Thomas Dixon¹

A method is described to measure the receiver sensitivity of a circularly polarized transmit and receive RF coil by mapping the transmit RF field strength on a reverse-oriented subject. A phase-based RF field mapping method allows robust RF mapping unaffected by tissue T1 or image contrast. The method is verified on a multi-slice abdominal scan of a volunteer at 3 T.