A General Framework for Modeling Sub- and Ultraharmonics of Ultrasound Contrast Agent Signals with MISO Volterra Series

Table 1

The parameters of microbubbles [13].

Resting radius	𝑟0=1.5 μm
Shell thickness	𝑑Se=1.5 nm
Shear modulus	𝐺𝑠=10 MPa
Shear viscosity	𝜂=1.49 Pa·s