The liver cancers including hepatocellular carcinoma (HCC) resulted in more than 7,000 mortalities in Taiwan every year. HCC is unique regarding diagnosis because the clinical diagnosis without pathology proof is accepted. The dynamic image, including contrast-enhanced computed tomography (CECT) and contrast-enhanced magnetic resonance image (CEMRI) were recognized in many guidelines for diagnosing the HCC including Taiwan National Health insurance. Currently established guidelines endorse 3-phasic CT and MRI as first-line modalities. In contrast to the CT and MRI, ultrasound (US) with/without contrast is suggested by several societies as the most sufficient surveillance modality. However, the advantage of US in liver cirrhosis with regenerative nodules is only 32-65% in sensitivity.