Preoperative prediction of microvascular invasion in hepatocellular carcinoma using ultrasound features including elasticity

Figure 1 Conventional ultrasound images in patients with a hepatic tumor pathologically diagnosed as hepatocellular carcinoma. A: Conventional ultrasound showed the tumor to be hypoechoic with an unclear boundary and cirrhosis in the surrounding liver tissue; B: Conventional ultrasound measured the maximal diameter of the tumor to be 32.7 mm; C: Color Doppler flow imaging showed one vessel in the tumor, and microvascular invasion was recorded as mild.