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Abstract #3255

Shielded Electromagnetic Transducer for Liver Magnetic Resonance Elastography

Mohammad Honarvar1, Shahed Khan Mohammed1, Qi Zeng1, Caitlin Schneider1, Robert Rohling1, Piotr Kozlowski2,3, and Septimiu Salcudean1
1Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada, 2UBC MRI Research Center, Vancouver, BC, Canada, 3Department of Radiology, University of British Columbia, Vancouver, BC, Canada

Electromagnetic shielded Lorentz coil actuator allows using the magnetic field of the MRI scanner to induce arbitrary elastic waves in the tissue in a cost-effective way. We developed a Lorentz coil actuator for the liver magnetic resonance elastography (MRE) for providing a larger wave coverage area, where the Lorentz coil is placed outside the imaging area by the use of an additional end-effector. Initial testing for phantom showed an excellent agreement with the reported elasticity, while the liver elasticity study provided promising results in detecting cirrhosis and hepatitis C virus.

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