Figure 3
From: Breast vibro-acoustography: initial experience in benign lesions
VA and mammography images of Case 1. (A) Prone cranial-caudal mammogram of the right breast shows a mass. (B) and (C) are VA images at 50 and 20 KHz frequencies, respectively, at a depth of 25 mm. The structural details are more pronounced at 50 kHz. The arrows mark the location of the mass. The slight upward shift was due to patient movement after mammography.