Figure 3

Diagram of the dual modality system for in vivo VA and B-mode imaging. The system can produce both B-mode and VA images. The computer-controlled probe slider translates the probe across the region of interest (thyroid). A collection of B-mode images is recorded as the probe slides across the thyroid. The same sliding motion is used to acquire a VA image of the same region. The C-mode image is extracted from the B-mode data at a depth that corresponds to the VA image plane.