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Abstract #4763

Calibration of Transceive-Array RF Power Using Lanthanide Shift Agents

Andrew T. Curtis1,2, Ravi S. Menon1

1Center for Functional and Metabolic Mapping, Robarts Research Institute, London, Ontario, Canada; 2Medical Biophysics, University of Western Ontario, London, Ontario, Canada

Parallel transmit arrays for high field MRI require extensive calibration to mitigate standing wave phase interaction effects. A power calibration method using NMR-active samples integrated into the coils is described and prototyped. It is simple, fast, robust, and solves an important first step in the transmitter array calibration (and B1+ mapping) process.