Comparison of RF Resonators Using Microstrip for Human Head at 3T

16-channel head coils using a variety of RF resonators were tested on study participants at 3 Tesla, and the penetrated RF magnetic fields were compared amongst four different RF resonators in a spherical phantom. we proposed using a 16-channel coil with a SIR with four arms, and we compared it to other RF resonators based on microstrip transmission lines. The 16-channel coil provided better B1+ fields and can be effectively controlled for parallel imaging in 3 Tesla MRI systems. 16-channel head coils using the SIR with four arms for parallel imaging could be used in hospitals for higher quality imaging.

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