Barbara L. Beck1,2, Jose A. Muniz, 23, Ihssan S. Masad, 23, Samuel C. Grant, 23
1McKnight Brain Institute, University of Florida, Gainesville, FL, United States; 2National High Magnetic Field Lab, Tallahassee, FL, United States; 3Chemical & Biomedical Engineering, Florida State University, Tallahassee, FL, United States
As MRI continues to evolve to higher static fields, radio frequency coil design must keep pace. Clockwise and counter clockwise field components must be considered when predicting signal intensity distributions. The magnetic fields of quadrature coils at 500 MHz and 900 MHz were simulated for the calculation of rotating components and simulated images. In addition, coils were constructed and tested in vertical bore magnets at 11.7 and 21.1 T. SNR of acquired images indicated 30% gain of quad coils over linear and approximately linear increase of SNR from 500 to 900 MHz.