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Related Concept Videos

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...
Endoscopic Procedures II: Colonoscopy01:25

Endoscopic Procedures II: Colonoscopy

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:
Lower GI Series: Barium Enema01:23

Lower GI Series: Barium Enema

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.
Procedure Details
The examination begins by inserting a lubricated rectal tube into the patient's rectum to administer a radiopaque barium solution. The barium flow is carefully...
Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy01:26

Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy

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
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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
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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

Imaging Studies VI: Voiding Cystourethrography and Cystography

Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...

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Related Experiment Video

Updated: Jun 13, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

CT colonography standards.

D Burling1,

  • 1Intestinal Imaging Centre, St Mark's Hospital, Watford Road, Harrow, Middlesex HA1 3UJ, UK. burlingdavid@yahoo.co.uk

Clinical Radiology
|May 11, 2010
PubMed
Summary
This summary is machine-generated.

Computed tomography (CT) colonography is a leading method for detecting colon cancer, surpassing barium enema. New international standards aim to improve CT colonography quality and patient experience globally.

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Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
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Related Experiment Videos

Last Updated: Jun 13, 2026

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System
15:49

Flexible Colonoscopy in Mice to Evaluate the Severity of Colitis and Colorectal Tumors Using a Validated Endoscopic Scoring System

Published on: October 16, 2013

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists
03:43

Structured Approach to Colonoscopy Technique Optimization: A Single-Center Experience with Novice Endoscopists

Published on: July 11, 2025

Area of Science:

  • Medical imaging
  • Gastroenterology
  • Radiology

Background:

  • Computed tomography (CT) colonography has replaced barium enema for colonic neoplasia detection due to better performance and patient experience.
  • CT colonography is now a core part of radiology training in the UK and widely used globally.
  • Significant performance variations exist among centers and practitioners, highlighting the need for standardization.

Purpose of the Study:

  • To summarize the development and recommendations of the CT colonography standards document.
  • To provide guidance for improving CT colonography technique and patient experience worldwide.
  • To address the complexity of CT colonography interpretation and technique.

Main Methods:

  • Review and synthesis of the CT colonography standards document.
  • Inclusion of expertise from experienced radiologists, radiographers, gastroenterologists, and screening experts.
  • Development of international standards through the International CT Colonography Standards Collaboration.

Main Results:

  • The article details the background and evolution of CT colonography standards.
  • Recommendations are provided to guide radiology teams globally.
  • The standards focus on enhancing CT colonography technique and patient experience.

Conclusions:

  • Established international standards are crucial for consistent, high-quality CT colonography.
  • Adherence to these standards can help reduce performance gaps.
  • The ultimate goal is to improve colonic neoplasia detection and patient care through standardized CT colonography practices.