Improved Visualization and Diagnostic Accuracy in Biliary Strictures with Virtual Indigo Carmine Chromoendoscopy

Virtual Indigo Carmine Chromoendoscopy (VICI) converted from peroral cholangioscopy images using artificial intelligence technology demonstrated superior visualization of surface structures and lesion margins compared to white light imaging and narrow-band imaging. VICI, in combination with white light imaging, significantly improved diagnostic accuracy for biliary strictures, showing potential as a supportive modality for peroral cholangioscopy.