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Related Concept Videos

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

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This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
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Endoscopic Procedures III: Video Capsule Endoscopy01:28

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Capsule endoscopy, or wireless or video capsule endoscopy, is a diagnostic procedure for examining the entire gastrointestinal tract. Patients swallow a capsule about the size of a vitamin tablet. The capsule is equipped with a transmitter, a battery, an LED light source, and a color video camera to capture images throughout the gastrointestinal tract. This procedure is particularly useful for diagnosing conditions such as Crohn's disease, ulcerative colitis, tumors, polyps, ulcers,...
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Endoscopic Procedures II: Colonoscopy01:25

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The colon, or large intestine, is the final segment of the digestive system. Its primary functions include absorbing water and vitamins produced by gut bacteria and transforming waste from liquid to solid to form stool. In adults, the large intestine is approximately 5 feet long and consists of four main sections:
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Assessment of the Rectum and Anus01:25

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Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
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Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Lower GI Series: Barium Enema01:23

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A Barium Enema, or a lower GI series, is a specialized radiographic examination designed to visualize the lower gastrointestinal tract, specifically the colon and rectum. This procedure is instrumental in diagnosing various conditions such as colorectal cancer, polyps, diverticulosis, and inflammatory bowel disease.
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Updated: Nov 27, 2025

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The Colon Endoscopic Bubble Scale (CEBuS): a two-phase evaluation study.

Filipe Taveira1, Cesare Hassan2, Michal F Kaminski3,4,5,6

  • 1Department of Gastroenterology, Portuguese Oncology Institute of Coimbra, Coimbra, Portugal.

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|December 7, 2020
PubMed
Summary
This summary is machine-generated.

A new scale, the Colon Endoscopic Bubble Scale (CEBuS), reliably assesses colonic bubbles during colonoscopy. This validated tool standardizes bubble evaluation, improving clinical decision-making in endoscopic procedures.

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Area of Science:

  • Gastroenterology
  • Endoscopy
  • Medical Device Development

Background:

  • No validated scale exists for assessing bubbles during bowel preparation for colonoscopy.
  • Bubbles can obscure visualization, potentially impacting colonoscopy quality.
  • Standardization of bubble assessment is crucial for consistent colonoscopy outcomes.

Purpose of the Study:

  • To develop and validate a novel scale, the Colon Endoscopic Bubble Scale (CEBuS), for assessing colonic bubbles.
  • To evaluate the reliability and agreement of the CEBuS among endoscopists.
  • To determine if CEBuS can standardize the assessment of bubble severity during colonoscopy.

Main Methods:

  • A multicenter, prospective, observational study involving two online evaluation phases.
  • 45 colonoscopy images were assessed twice, 2 weeks apart, using the CEBuS (grades 0-2).
  • Observers reported clinical actions (do nothing, wash with water, wash with simethicone) based on bubble severity.

Main Results:

  • CEBuS demonstrated high intraobserver and interobserver reliability (kappa 0.82-0.86, ICC 0.83-0.90).
  • Endoscopic experience did not significantly influence agreement among observers.
  • Interobserver agreement on clinical action improved from Phase 1 (ICC 0.63) to Phase 2 (ICC 0.77).

Conclusions:

  • The Colon Endoscopic Bubble Scale (CEBuS) is a reliable instrument for standardizing colonic bubble evaluation.
  • CEBuS facilitates consistent assessment of bubbles during colonoscopy.
  • Further assessment of CEBuS in daily clinical practice is recommended.