Figure 3. (a) An ultrasonic image generated by plotting the variation of the intensity of the reflected beam. The cells are XTH-2 cells, originating from Xenopus tadpole heart endothelium. The straight line on the image is the scan line along which cell properties are computed. (b) Predicted wave speed (continuous line) and attenuation (dotted line) variation along the scan line. Reprinted from [29] with permission.