Basic investigation on identification of tissue composition based on propagation speeds of longitudinal and shear waves

Abstract The elastic modulus of tissue as a useful biomarker disease detection can be quantitatively evaluated based on shear wave speed (SWS) measurements in elastography. Although the longitudinal (LWS) is also expected to promising for detection, elasticity not always dominant because LWS affected by bulk modulus. In other words, and SWS may reflect different properties. Therefore, this study, improvement measurement, relationship between composition phantom mixed with agar glycerol ultrasonically measured was investigated. had good sensitivity detecting glycerol, while agar. calculated Poisson’s ratio better conclusion, simultaneous measurement help identify composition.