Endoscopic ultrasound: an upper or reduce endoscopy with the ultrasound wand hooked up on the endoscope, which allows to visualise your biliary system. The length and also the width of your duodenal ulcer crater have been measured with vernier calipers in millimeters. Along with the ulcer parts ended up calculated https://www.directivepublications.org/journal-of-gastroenterology-hepatology-and-endoscopy-research/