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. 2021 Apr 29;23:52. doi: 10.1186/s13058-021-01429-4

Fig. 2.

Fig. 2

An example for calculating the fmass for a 59-year-old female patient with grade II invasive ductal carcinoma. a The mass size d was read as the greatest dimension shown in the clinical B-mode image, and it is 28 mm in this example. b The minimum shear wave speed was calculated as the average value of the minimum shear wave speed from the three ROIs shown in the SWE image and is 2.7 m/s. Therefore, the fmass for this measurement is 96 Hz. ROI, region of interest; SWE, shear wave elastography