Endoscopic ultrasound (EUS) is the gold standard for evaluation and biopsy of lesions in the pancreaticobiliary tract, subepithelial lesions in the gastrointestinal tract and luminal cancer staging due to its high sensitivity and specificity. Endoscopic ultrasound examination is performed by echoendoscopes, which are endoscopes with an ultrasound probe at the distal end to allow endoscopic ultrasound evaluation. A new endoscopic ultrasound system - the EndoSound Visual System has now been developed for endoscopic ultrasound examination. The EndoSound Visual System is a device that can be attached externally to upper gastrointestinal endoscopes, thereby converting a standard endoscope into an echoendoscope which can then be used to perform an EUS examination.
The aim of this randomized trial is to compare the standard echoendoscope with the newly developed EndoSound Visual System in the evaluation of lesions in the gastrointestinal tract.
