Abstract(s)
Multi-parametric ultrasound imaging is a
promising tool for quantification of nonalcoholic fatty
liver disease. In this work, a protocol of plane wave
quantitative ultrasound (QUS) and shear wave
elastography imaging (SWEI), quasi-simultaneously
acquired, dedicated to quantification of liver steatosis
on in vivo fatty duck liver is presented. Shear wave
velocity was estimated to classify stiffness in duck liver
tissue. QUS consisted of local attenuation coefficient
slope estimated with Spectral Log Difference method,
and coherent-to-diffuse signal ratio computed from
homodyned-K parametric maps. After 9 days of feeding,
US attenuation reached a maximum and coherent-todiffuse signal ratio reached a minimum. Coupled
together, QUS and SWEI promise a strong potential in
steatosis monitoring of fatty liver tissue, in ducks or
humans.