ACCURACY OF VISUAL ON-SITE EVALUATION (VOSE) IN PREDICTING THE ADEQUACY OF EUS-GUIDED FINE NEEDLE BIOPSY: A SINGLE CENTER PROSPECTIVE STUDY

Aims EUS-FNA is the standard procedure for the diagnosis of pancreatic lesions with accuracy rate of 78-95%. Rapid onset evaluation (ROSE) decreases the number of passes but is not always available. New needles have been developed to obtain tissue acquisition (fine-needle biopsy, FNB) with a relatively better diagnostic adequacy with fewer passes. Without ROSE, there is no clear criterion for determining the number of FNA passes and therefore...