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Related Concept Videos

Assessment of the Rectum and Anus01:25

Assessment of the Rectum and Anus

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.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy01:26

Imaging Studies III: Gastrointestinal Motility Studies and Virtual Colonoscopy

This lesson explores three gastrointestinal imaging techniques: radionuclide testing, colonic transit studies, and virtual colonoscopy.
Radionuclide Testing
Radionuclide testing is a sophisticated medical technique for assessing gastrointestinal motility. It focuses on gastric emptying and colonic transit time. Radioactive markers track the movement of food through the digestive system, providing insights into gastrointestinal disorders.
In gastric emptying studies, a meal's liquid and solid...
Diverticular Disease of the Colon01:27

Diverticular Disease of the Colon

Diverticular disease involves the formation of diverticula—small sac-like outpouchings of the colonic wall—and their complications. It most commonly affects the sigmoid colon due to higher intraluminal pressure and structural vulnerability. It results from structural weakness and increased pressure in the colon, producing pseudodiverticula that may remain silent or progress to inflammation and serious complications.Structure of DiverticulaIn diverticulosis, these outpouchings are...

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Related Experiment Video

Updated: Jun 6, 2026

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
13:44

Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns

Published on: August 30, 2013

Automatic colon polyp flagging via geometric and texture features.

Marcelo Fiori1, Pablo Musé, Sergio Aguirre

  • 1Universidad de la República-Uruguay.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
|November 25, 2010
PubMed
Summary
This summary is machine-generated.

Computer Tomographic Colonography with computer-aided detection (CAD) shows promise for colonic polyp analysis. New texture and geometric features improve polyp flagging, even for small and flat polyps.

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Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
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Published on: September 5, 2014

Area of Science:

  • Medical Imaging
  • Gastroenterology
  • Computer Science

Background:

  • Colorectal cancer screening relies on detecting colonic polyps.
  • Computer Tomographic Colonography (CTC) is an emerging non-invasive imaging technique.
  • Computer-Aided Detection (CAD) systems can aid in identifying polyps during CTC analysis.

Purpose of the Study:

  • To develop and evaluate a novel CAD scheme for colonic polyp detection using CTC.
  • To improve the accuracy of polyp flagging by incorporating advanced features.

Main Methods:

  • A new CAD algorithm was developed utilizing novel texture and geometric features.
  • The algorithm considers information from the candidate polyp location and its surrounding area.
  • The system was tested on ground truth data, including challenging cases like flat and small polyps.

Main Results:

  • The proposed CAD scheme demonstrated very promising results in identifying colonic polyps.
  • The algorithm's effectiveness was validated on diverse polyp types, including small and flat morphologies.
  • The feature extraction method showed potential for enhanced polyp detection accuracy.

Conclusions:

  • The developed CAD scheme shows significant potential as an assistive tool for colonic polyp analysis in CTC.
  • The integration of advanced texture and geometric features enhances the detection capabilities for various polyp types.
  • This approach could improve the efficiency and accuracy of colorectal cancer screening through CTC.