Assessment of hepatic VX2 tumors of rabbits with second harmonic imaging under high and low acoustic pressures

Figure 1 Image of VX2 tumor lesion under conventional B mode US. Arrow indicated the VX2 tumor lesion at the anterior part of the right lobe. It was oval and hypoechoic with a small hyperechoic scar at the center of the lesion.

Figure 2 a: Image of VX2 tumor lesion under high MI second harmonic imaging. Arrow indicated the nutrient artery of same VX2 tumor lesion, and the suspicious artery of a satellite lesion. b: Contrast enhanced second harmonic image under low MI revealed the enhancement of nutrient arteries of VX2 tumor lesion and the nutritive artery of satellite lesion.

Figure 3 Image of second harmonic under low MI. It showed the clear tumor and its satellite lesion.