Analysis of the viscoelasticity of gelatin phantoms

In the measurement of tissue viscoelasticity, a suitable rheological model can accurately predict the mechanical properties of tissues over a wide frequency band, thereby more accurately reflecting the pathological changes of tissues. Conduct parallel plate rotational shear experiments using a commercial shear rheometer. The storage and loss moduli of gelatin phantoms with four different concentrations at 1 Hz to 50 Hz were obtained, for analyzing the selection of rheological models in the measurement of the viscoelasticity of gelatin phantoms.