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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 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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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 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
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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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Imaging Studies VI: Voiding Cystourethrography and Cystography01:22

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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: May 1, 2026

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

Lewis K Shin1, Peter Poullos, R Brooke Jeffrey

  • 1Department of Radiology, Stanford University School of Medicine, 300 Pasteur Drive, Room H-1307, Stanford, CA 94305-5105, USA. lshin@stanford.edu

Gastrointestinal Endoscopy Clinics of North America
|May 11, 2010
PubMed
Summary
This summary is machine-generated.

Virtual colonoscopy (VC) using MRI offers a radiation-free alternative for detecting colorectal polyps. This advanced imaging technique provides high-resolution 3D views of the colon, enhancing cancer screening capabilities.

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Area of Science:

  • Gastroenterology
  • Radiology
  • Oncology

Background:

  • Colorectal cancer is a leading cause of cancer death, necessitating effective screening methods.
  • Virtual colonoscopy (VC) is an established polyp detection technique.
  • Concerns regarding ionizing radiation from CT-based VC are driving the search for alternatives.

Purpose of the Study:

  • To explore the feasibility of magnetic resonance imaging (MRI) for virtual colonoscopy.
  • To assess MRI's potential as a radiation-free alternative for colorectal cancer screening.

Main Methods:

  • Utilizing advanced MRI technology for three-dimensional volumetric imaging of the colon.
  • Achieving high spatial resolution imaging within a single breath hold.

Main Results:

  • MRI technology now enables high-resolution, 3D imaging of the entire colon.
  • This advancement makes MRI-based virtual colonoscopy a viable option.

Conclusions:

  • Magnetic resonance imaging (MRI) presents a promising, radiation-free alternative for virtual colonoscopy.
  • This technology could enhance colorectal cancer screening protocols by mitigating radiation risks.