A Novel 1H/ 3He Dual-Tuned Transmit Coil at Ultra-low Field MRI Designed by Using Electromagnetic Field and Radio Frequency Circuit Co-Simulation Method.

In the development of noble gas MRI in humans, the traditional single-tuned transmit coil does not suitable for imaging acquisitions. This paper presents a novel radio frequency(RF) coil design method for applications of 1H/3He MRI system at the ultra-low field of 0.06mT.For the complex model of the dual- tuned 1H/3He coil, the traditional Electromagnetic(EM) simulation is not applicable due to its long computing time, the EM field and radio frequency (RF) circuit co-simulation method thus is implemented to accelerate the analysis, which results in an effective evaluation. The simulation results show that the proposed model has the potential for imaging of lung with 1H/3He MRI system at the ultra-low field.