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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:
Imaging Studies III: Computed Tomography01:27

Imaging Studies III: Computed Tomography

DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
Imaging Studies for Cardiovascular System V: CT01:28

Imaging Studies for Cardiovascular System V: CT

Cardiac computed tomography (CT) scanning is an advanced cardiac imaging technique that utilizes CT technology, with or without intravenous (IV) contrast, to produce accurate cross-sectional virtual slices of specific areas of the heart, coronary circulation, and major blood vessels such as the aorta, pulmonary veins, and arteries. The computer processes these slices to generate three-dimensional images. Multidetector CT (MDCT) is a rapid form of CT scanning that captures multiple slices...
Endoscopic Procedures III: Video Capsule Endoscopy01:28

Endoscopic Procedures III: Video Capsule Endoscopy

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, unexplained...
Endoscopic Procedures I: Esophagogastroduodenoscopy01:29

Endoscopic Procedures I: Esophagogastroduodenoscopy

An Esophagogastroduodenoscopy (EGD) is a diagnostic procedure in which an endoscopist uses a flexible, lighted endoscope to visualize the upper gastrointestinal (GI) tract. The procedure includes visualizing the oropharynx, esophagus, stomach, and the first part of the small intestine, the duodenum.
During an EGD, the endoscope can be used to:

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Related Experiment Video

Updated: May 18, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
04:40

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans

Published on: August 28, 2018

The second ESGAR consensus statement on CT colonography.

Emanuele Neri1, Steve Halligan, Mikael Hellström

  • 1Diagnostic and Interventional Radiology, University of Pisa, Pisa, Italy. emanuele.neri@med.unipi.it

European Radiology
|September 18, 2012
PubMed
Summary
This summary is machine-generated.

European experts updated CT colonography (CTC) quality standards using a Delphi process. Consensus was reached on 82% of statements, guiding CTC acquisition and interpretation for improved patient care.

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Last Updated: May 18, 2026

Identifying Coronary Artery Calcification on Non-gated Computed Tomography Scans
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E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy
06:28

E-Patient Counseling Trial (E-PACO): Computer Based Education versus Nurse Counseling for Patients to Prepare for Colonoscopy

Published on: August 1, 2019

Area of Science:

  • Gastrointestinal Radiology
  • Medical Imaging Technology
  • Clinical Practice Guidelines

Background:

  • CT colonography (CTC) is a valuable tool for colorectal cancer screening.
  • Existing quality standards require regular updates to reflect advancements in technology and practice.
  • The European Society of Gastrointestinal and Abdominal Radiology (ESGAR) initiated a consensus process to refine CTC standards.

Purpose of the Study:

  • To update quality standards for CT colonography.
  • To achieve consensus among European opinion leaders on CTC acquisition, interpretation, and implementation.

Main Methods:

  • A modified Delphi process was employed by a multinational panel of nine ESGAR CT colonography Working Group members.
  • Four rounds of consensus-building were conducted over an 8-month period.
  • Panelists rated agreement on statements covering various aspects of CTC.

Main Results:

  • Eighty-six statements were developed, with 82% achieving complete consensus.
  • High consensus was observed for colon distension, scan parameters, contrast agents, patient preparation, CAD, and lesion measurement.
  • Lower consensus was noted for rectal tube use, spasmolytics, positioning, data acquisition, fecal tagging, 2D vs. 3D reading, and reporting.

Conclusions:

  • The consensus recommendations provide updated quality standards for CT colonography.
  • These guidelines are beneficial for both new and established CTC services.
  • The updated standards aim to enhance the quality and consistency of CTC practice across Europe.