A large volume HEM dielectric resonator for musculoskeletal applications at ultra high field
Sebastian Arnold Aussenhofer 1 and Andrew Webb 1
Radiology Leiden University Medical Center,
C.J. Gorter Center for High Field MRI, Leiden,
A water-based dielectric resonator operating in the
quadrature HEM mode has been designed and constructed
for imaging the human knee at 7 Tesla. The continuous
current distribution throughout the resonator results in
an extremely simple design of a water-filled annulus
connected to the scanner through two impedance matching
networks. High resolution images of the knee at
sub-millimeter resolution have been acquired in less
than 4 minutes using this resonator.
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