Visualisation of the Ampulla of Vater on Small Bowel Capsule Endoscopy

Authors

  • Eliezer Zahra Dept. of Gastroenterology, Mater Dei Hospital, Msida, Malta
  • Rebecca Sammut Dept. of Medicine, Mater Dei Hospital, Msida, Malta
  • Reena Sidhu Academic Dept. of Gastroenterology and Hepatology, Sheffield Teaching Hospitals NHS Trust, University of Sheffield, UK
  • Lucia Scaramella Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
  • Nicole Sciberras Dept. of Gastroenterology, Mater Dei Hospital, Msida, Malta
  • Kelly Conti Dept. of Gastroenterology, Mater Dei Hospital, Msida, Malta
  • Clelia Marmo Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, Rome, Italy; Dipartimento di Scienze Medico-Chirurgiche e Gastroenterologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
  • Giulia Scardino Gastroenterology Unit, Ospedale Valduce, Como, Italy
  • Cristina Carretero Gastroenterology Dept. Clínica Universidad de Navarra. Instituto de Investigación Sanitaria de Navarra (IDISNA). Pamplona, Spain
  • Emmanuele Rondonotti Gastroenterology Unit, Ospedale Valduce, Como, Italy
  • Maria Elena Riccioni Facoltà di Medicina e Chirurgia, Università Cattolica del Sacro Cuore, Rome, Italy; Dipartimento di Scienze Medico-Chirurgiche e Gastroenterologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
  • Luca Elli Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
  • Nicoletta Nandi Dept. of Pathophysiology and Transplantation, Università degli studi di Milano, Milan, Italy
  • Pierre Ellul Dept. of Gastroenterology, Mater Dei Hospital, Msida, Malta
  • Stefania Chetcuti Zammit Dept. of Gastroenterology, Mater Dei Hospital, Msida, Malta

DOI:

https://doi.org/10.15403/jgld-5941

Keywords:

small bowel capsule endoscopy, ampulla of Vater, reading speed

Abstract

Background and Aims: Visualization of lesions on small bowel capsule endoscopy (SBCE) depends on capsule motility. The aim of this study was to assess the delineation of the ampulla of Vater (AoV) across different levels of expertise and reading speeds.

Methods: This was a study whereby de-identified SBCE videos were reviewed by scrolling with mouse wheel and then at a speed of 10 frames per second (10 fps). Data regarding delineation of the AoV and bile was collected.

Results: Thirty patients (63.3% males, 63.5 years +/- SD 7.164) were included. The mean detection rate of AoV was higher when the mouse wheel was used than when compared to 10 fps for trainees (35% vs. 21.7%) and experts (33.8% vs 20.5%). The rate of concordance in the delineation of the AoV amongst experts declined with higher reviewing speeds (κ 0.493, p=0.98 mouse wheel vs κ 0.482, p=0.2 10 fps). Experts had a better agreement in detecting AoV than trainees (κ 0.493, p=0.98 vs 0.482, p=0.2 for mouse wheel and 10 fps respectively for experts: κ 0.135, p=0.75 for mouse wheel and 0.109, p=0.2 at 10 fps).

Conclusions: This study demonstrates that visualization of the AoV is dependent on the level of expertise and capsule speed.

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Published

2025-06-28

How to Cite

1.
Zahra E, Sammut R, Sidhu R, Scaramella L, Sciberras N, Conti K, Marmo C, Scardino G, Carretero C, Rondonotti E, Riccioni ME, Elli L, Nandi N, Ellul P, Chetcuti Zammit S. Visualisation of the Ampulla of Vater on Small Bowel Capsule Endoscopy. JGLD [Internet]. 2025 Jun. 28 [cited 2026 May 10];34(2):167-73. Available from: https://jgld.ro/jgld/index.php/jgld/article/view/5941

Issue

Vol. 34 No. 2: June 2025

Section

Original Article

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Copyright (c) 2025 Journal of Gastrointestinal and Liver Diseases

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