F
Vazquez1, R Martin1, O Marrufo1, Alfredo O.
Rodriguez1
1Departament
of Electrical Engineering, Universidad Autonoma Metropolitana Iztapalapa,
Mexico, DF, Mexico
Waveguides
have been successfully used to generate magnetic resonance images at 7 Tesla
for whole-body systems. From these results, it has been established that
waveguides are only suitable for 7T systems with wide bores of al least 60
cm. This is mainly due to the cut-off frequency of the cylindrical waveguides
used. To overcome this limitation a parallel-plate waveguide was employed
since its cut-off frequency depends on the separation of the plates. A parallel-plate waveguide was built and
used to acquire images of a healthy volunteers leg at 3 Tesla on a clinical
MR imager.