Fig. 6From: ARFI: from basic principles to clinical applications in diffuse chronic disease—a reviewEffect of the orientation of the ROI on the speed of propagation of the shear waves. A higher SWV value (4.16 vs. 3.00 m/s) is attributed to a given target (oil) with a ROI parallel (a) rather than oblique (b) to the main US beamBack to article page