Evaluation of internal and shell stiffness in the differential diagnosis of breast non-mass lesions by shear wave elastography

Figure 3 Gray-scale-velocity dual pattern. This shows the traced line of the outer edge (white circle) of the NMLs and the shell at 2.5 mm (pink circle) on the left image, and no “stiff rim” on the right image. Mean, maximum, minimum elastic values and the standard deviation were 17.03 kPa, 40.89 kPa, 3.23 kPa and 6.93 kPa, respectively, for internal elasticity, and 12.74 kPa, 37.00 kPa, 2.51 kPa and 7.90 kPa, respectively, for the shell at 2.5 mm. The pathology result was adenosis. A: The area within the lesion; Shell: The area around the lesion. Emax: Maximum; Emean: Mean; Min: Minimum; Esd: Elastic values and the standard deviation.