ARFI VTTQ of a benign breast lesion (fibrosis). The region of interest is set to the center of the lesion. Upon activation, a push pulse is generated, and detection pulses determine the velocity of the shear wave. Within milliseconds, the value (3.21 m/s) is returned.Abbreviations: ARFI, acoustic radiation force impulse imaging; VTTQ, Virtual Touch™ tissue quantification.