Jonathan Y. Lu1, Xiaoliang Zhang2, 3, Brian K. Rutt4
1Electrical Engineering Department, Stanford University, Stanford, CA, United States; 2Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, CA, United States; 3UC Berkeley/UCSF joint graduate group in Bioengineering, San Francisco, CA, United States; 4Radiology Department, Stanford University, Stanford, CA, United States
We propose a novel transmit array coil design for use at 7T employing an array of dielectric resonators. Our design is composed of cylinders filled with deionized water, which after excitation by copper loops can function as transmit array elements. Using FDTD simulations, we have found that this design is easy to tune to high frequency, uses low cost material, and shows improved decoupling and B1+ efficiency compared to a loop array of matched dimension.