Comparative analysis of indentation and magnetic resonance elastography for measuring viscoelastic properties

Abstract Measurement the viscoelastic properties is important for studying developmental and pathological behavior of soft biological tissues. Magnetic resonance elastography (MRE) a non-invasive method in vivo measurement tissue viscoelasticity. As flexible capable testing small samples, indentation has been widely used characterizing Using 2nd-order Prony series dimensional analysis, we analyzed compared model parameters estimated from both MRE. Conversions two methods were established. We found that indention test better at capturing dynamic response tissues frequency less than 10 Hz, while MRE describing responses relatively higher range. The results provided helpful information using models are also quantifying Graphic