 The
mission of the CIA-MR is to
apply magnetic resonance technology to fundamental problems in
engineering and the physical sciences.
CIAMR HomeCIAMR PersonnelCIAMR FacilitiesMR-PET Scanner DevelopmentMagnetic LevitationMR Compatibility of Medical DevicesMR Analysis of Bioreactor Structure and FunctionIndustrial NMR ApplicationsMRI of Wood3D MRI of FoamTissue EngineeringMRI of KneesMicro NMR CoilsDepartment of RadiologyUniversity of Minnesota |
MR Compatability of Medical
Devices CIA-MR The CIA-MR offers MR compatibility testing of medical devices (see pdf document). The laboratory uses ASTM protocols to test for magnetic deflection, torque, RF heating and image distortion at 1.5 T and 5.0 T magnetic field strengths. In August 2004 the CIA-MR will be able to screen weakly diamagnetic components (used to build “non-magnetic” devices) in a static field gradient of 100 T/m. Contact the CIA-MR for more details director@ciamr.drad.umn.edu The CIA-MR also has the capability to model eddy currents and voltages induced on devices through electromagnetic simulation software. Examples of these simulations are shown below.  B1 field of eight element birdcage RF coil  Eddy Current Induction on a Sphere -Quadrature Mode B1 -100 mm Coil Radius -64 MHz Frequency -Aluminum Sphere (Radius = 20 mm, s = 3.7 x 107 Sm-1) |
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