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Related Concept Videos

Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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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 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.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
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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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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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Urologic Endoscopic Procedure: Cystoscopic Examination01:28

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Meaning of Cystoscopic Examination:Cystoscopy is an essential diagnostic tool in urology that is used to assess the structure and function of the genitourinary system. It provides a direct view of the urethra, bladder, and, in some cases, the ureteral openings. This procedure helps detect structural abnormalities, infections, cancers, and blockages in the urinary tract. There are two types of cystoscopy:Flexible cystoscopy is commonly performed in outpatient settings due to its less invasive...
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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
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Related Experiment Video

Updated: Nov 10, 2025

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
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Clinical Performance of New Software to Automatically Detect Angioectasias in Small Bowel Capsule Endoscopy.

Dalila Costa1,2,3, Pedro Vieira4, Catarina Pinto1

  • 1Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal.

GE Portuguese Journal of Gastroenterology
|April 1, 2021
PubMed
Summary

A new algorithm (CMEMS-Uminho) improves angioectasia detection in video capsule endoscopy (VCE) by enhancing physician performance. This tool shows promise for improving diagnostic yield in clinical practice.

Keywords:
AlgorithmAngioectasiasAutomatic detectionVideo capsule endoscopy

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Area of Science:

  • Gastroenterology
  • Medical Imaging
  • Artificial Intelligence

Background:

  • Video capsule endoscopy (VCE) is crucial for diagnosing obscure gastrointestinal bleeding.
  • Physician detection rates for small bowel lesions in VCE remain suboptimal.
  • A novel algorithm, CMEMS-Uminho, was developed for automated angioectasia detection in VCE.

Purpose of the Study:

  • To evaluate the overall performance of the CMEMS-Uminho algorithm.
  • To assess the algorithm's diagnostic yield and usability in clinical practice.
  • To determine if the algorithm enhances physician performance in VCE analysis.

Main Methods:

  • Algorithm performance was assessed using 54 full-length VCE recordings.
  • 38 VCE examinations for suspected angioectasias were reviewed by physicians with varying experience.
  • The CMEMS-Uminho algorithm's concordance with an independent capsule endoscopist was evaluated.

Main Results:

  • The algorithm achieved 77.7% overall performance and 94.7% diagnostic yield.
  • Significant inter-physician variability was observed in detection rates and time.
  • CMEMS-Uminho application significantly improved all readers' detection rates, reducing variability.

Conclusions:

  • The CMEMS-Uminho algorithm demonstrates good overall performance.
  • The algorithm enhances physician performance in VCE analysis.
  • CMEMS-Uminho shows potential for improved usability and diagnostic yield in clinical practice.