Evaluation of shear wave dispersion in hepatic viscoelastic models including fibrous structure

• Published in: Japanese Journal of Applied Physics Vol. 58; no. SG; p. SGGE07
• Main Authors: Fujii, Shiori, Yamakawa, Makoto, Kondo, Kengo, Namita, Takeshi, Shiina, Tsuyoshi
• Format: Journal Article
• Language: English
• Published: Tokyo IOP Publishing 01.07.2019; Japanese Journal of Applied Physics
• Subjects: Computer simulation; Fiber optic communications; Fibrosis; Fibrous structure; Frequency ranges; Hepatitis; Low frequencies; S waves; Shear; Viscoelasticity; Viscosity; Wave dispersion; Wave propagation; Wave reflection

In diagnosis of chronic hepatitis, shear wave elastography is utilized for the evaluation of fibrosis progression by estimating the viscoelasticity from shear wave speeds. The dispersion slope method is studied to evaluate the viscosity and fibrosis stage. However, when the shear wave length is a li...