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Abstract #2501

Magnetic Resonance Elastography in Bounded Media

Arunark Kolipaka1, Kiaran P. McGee1, Armando Manduca1, Kevin J. Glaser1, Philip A. Araoz1, Richard L. Ehman1

1Department of Radiology, Mayo Clinic, Rochester, MN, USA

MR elastography (MRE) is a novel, MR-based method for spatially resolving the shear modulus of tissue-like materials. Current MRE estimates of shear modulus do not include geometric considerations and therefore can potentially underestimate this value. The aim of the study is to extend MRE methods to two objects in which geometric considerations are included, namely a beam and spherical shell. Validation of these models was performed by comparing MRE stiffness values to those obtained from finite element modeling and pressure-volume estimates.