Kyunghyun Sung1, Houchun H. Hu2, Krishna S. Nayak2
1Radiology, Stanford University, Stanford, CA, USA; 2Electrical Engineering, University of Southern California, Los Angeles, CA, USA
Knowledge of the maximum achievable transmit RF (B1+) field strength and its spatial variation enables one to optimize RF pulses and pulse sequences. We present a rapid method for mapping the peak B1+ field strength in vivo using pre-scan variables and previously described methods for relative B1+ mapping. This approach is applied to cardiac imaging on a commercial 3T scanner.