Figure 8.

(Color online) Speed image from 65 year old patient p05, showing benign fibroadenoma (FA). The FA was segmented out with simple thresholding and the speed measured as 1599 m/s. Fibroglandular tissue and skin (light gray) are clearly visible also. Note the low speed fat – dark gray region (1443 m/s), the relatively high speed of the skin and ductal tissue (1556 m/s) and the high speed region corresponding to the FA (1599 m/s), which is higher than most of the other FA values that we observed. The boundary was smooth, there was no spiculation.