The primary objective of this study is to demonstrate the safety of the use of intra-operative ultrasound contrast (Definity®) administration. The secondary objective of this study is to demonstrate the improved image quality and conspicuity of known liver tumors using contrast enhancement.
The primary purpose of this study is to demonstrate the safety and effectiveness of using an intra-operative ultrasound contrast agent(Definity®) for the identification of known liver tumors.