PRIMARY OBJECTIVE:~I. To describe the findings and outcomes of patient undergoing contrast-enhanced harmonic endoscopic ultrasound (CE-EUS) imaging.~OUTLINE: This is an observational study.~Patients who have undergo contrast-enhanced harmonic endoscopic ultrasound imaging have their medical records reviewed.
This study creates a patient registry of patients undergoing contrast-enhances-harmonic endoscopic ultrasound imaging. In order to improve what doctors see on the ultrasound exam, sometimes intravenous contrast can be used to better emphasize the blood flow in a particular organ or lesion. Creating a local database that can be used as a patients registry may help doctors keep track of all patients that undergo contrast-enhanced endoscopic ultrasound procedures and also to monitor for possible procedure adverse events.