Fig. 2From: ARFI: from basic principles to clinical applications in diffuse chronic disease—a reviewEffect of the elasticity of the target on the speed of propagation of the shear waves. Shear waves do not generate (SWV not measurable: “X.XX”) in pure water (a) and travel quite fast (3.72 m/s) in oil (b). In a water-oil emulsion (c) the SWV (2.89 m/s) is lower than in pure oilBack to article page