Individualized and accurate SAR characterization method based on an equivalent circuit model in MRI system
Weiman Jiang1, Fan Yang1, and Kun Wang1
1GE Healthcare, Beijing, China
This work proposed a novel accurate and low-cost method to
individualized monitor the whole body SAR
based on an equivalent circuit model and the circuit’s frequency response
analysis.
Figure 1 A, The schematic diagram of
experimental setup of the pulse energy method with flux loop defined in NEMA MS
8. B, The schematic diagram of experimental setup of equivalent circuit model
without flux loop.
Figure
2 A, Equivalent circuit model of the empty coil in the power transmit chain. B,
Equivalent circuit model of the coil loaded with subject in the power transmit
chain.