Evaluation of Intra-operative Ultrasound Contrast Enhancement in the Evaluation of Liver Tumors

Inclusion Criteria: 1. Undergoing a hepatic resection or hepatic ablation of pre-operative visualized liver tumor: 2. ≥ 18 years of age 3. If female of child-bearing potential, negative pregnancy test within 14 days prior to surgery 4. If subject is a sexually active male or a sexually active female of child-bearing potential, subject agrees to use a medically accepted form of contraception from the time of enrollment to completion of all follow-up study visits. 5. IRB-approved informed consent, signed by the subject or the subject's legally authorized representative. ≥ 18 years of age Exclusion Criteria: 1\. Not a suitable candidate for operation