抄録
Magnetic resonance elastography (MRE) is non-invasive method to identify elastic modulus distribution of human body by magnetic resonance imaging (MRI). MRE measures displacements of elastic wave propagation in response to excitation on the surface of human body. This data is transformed into elastic modulus distribution in human body by solving inverse problem about viscoelastic body model. In this study, vibration analysis based on modal analysis is conducted to the finite element (FE) model of a human body phantom as a part of the advancement in MRE. Elastic wave images of FE model and elastic modulus distribution recovered from the wave data are compared to results of MRE measurements, demonstrating high efficiency of FE analysis for MRE evaluation.
