Ultrasound B-mode and shear wave elastography (SWE) imaging of the flexor digitorum superficialis muscle. On both sides of the screen, the same B-mode image of the muscle in the longitudinal plane is displayed. On the left, a shear wave velocity map is overlaid with the colour scale ranging from 0.0 m/s (blue) to 12.0 m/s (red). On the right, a proprietary shear wave propagation display is shown, meant to depict the shear wave wavefront. The orange circles are the shear wave velocity measurement ROI placed after acquisition.