Abstract #0538

A Quadrature HEM11 Mode Resonator as a New Volume Coil for High Field MRI

Sebastian Arnold Aussenhofer¹, Josef Hubensteiner², Andrew G. Webb²

¹Department of Radiology, Leiden University Medical Center, C.J.Gorter Center for High Field MRI, Leiden, Zuid-Holland, Netherlands; ²Department of Radiology, Leiden University Medical Center, C.J.Gorter Center for High Field MRI, Leiden, Zuid-Holland, Netherlands

A cavity resonator based on water as a dielectric is simulated, designed and tested to excite the degenerate quadrature HEM11 modes for a human 7T magnet. Results of the electromagnetic simulation show good RF homogeneity for an annular resonator with different parts of the body inside the annulus. Images of the wrist of a healthy human volunteer were acquired, showing the promise of this new type of high field volume resonator.