a. After CE-EUS and EUS, the images will be randomly ordered and interpreted by a radiologist. An excel sheet will be made and the studies will be placed into three separate blocks in chronological order Participant 1-10, 11-20, and 21-30. In a separate column a random number generator will order the first block of 1-10's EUS into a random order for and then again a different random order for CE-EUS. The radiologist will fill out the attached questionnaire. The Surgeon will be blinded to these readings as they are for research purposes only and not the standard of care.