An alternative linear post-processing method that enables fast and precise calculation of viscoelastic parameters (viscosity, η and elasticity, μ) of the liver from multi-frequency MR elastograms has been shown in this study. Correlation of viscoelastic parameters between linear and non-linear calculation methods was significantly high in phantom (r = 0.980 for μ, r = 0.983 for η) and patients study (r = 0.932 for μ, r = 0.935 for η). Calculation speed by linear method (0.42 s) was significantly faster than that by non-linear method (47.14 s). The proposed method will promote clinical application of viscoelastic analysis of liver diseases using MR elastography.
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