Capsule endoscopy: Difference between revisions
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In [[gastroenterology]], [[capsule endoscopy]] is a [[gastrointestinal endoscopy]] that "non-invasive, endoscopic imaging by use of [[video capsule endoscope]]s to perform examination of the gastrointestinal tract, especially the small bowel."<ref>{{MeSH}}</ref> | In [[gastroenterology]], [[capsule endoscopy]] is a [[gastrointestinal endoscopy]] that "non-invasive, endoscopic imaging by use of [[video capsule endoscope]]s to perform examination of the gastrointestinal tract, especially the small bowel."<ref>{{MeSH}}</ref> | ||
==Technology== | ==Technology== | ||
The core technology is a video camera and lights that transmit to antennas wrapped around the body. Beyond this, however, newer capsules contain | The core technology is a video camera and lights that transmit to antennas wrapped around the body. Beyond this, however, newer capsules contain [[accelerometer]]s and [[gyroscope]]s that can time and track its passage through the body. <ref>{{citation | ||
| title = Swallowable-Capsule Technology | | title = Swallowable-Capsule Technology | ||
| url = http://www.cs.cmu.edu/~15-821/CDROM/PAPERS/mccaffrey08.pdf | | url = http://www.cs.cmu.edu/~15-821/CDROM/PAPERS/mccaffrey08.pdf | ||
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It is possible that a partial occlusion of the gastrointestinal tract could entrap the capsule. This is not a risk with virtual colonoscopy, and, with traditional colonoscopy, the examiner could recover immediately. | It is possible that a partial occlusion of the gastrointestinal tract could entrap the capsule. This is not a risk with virtual colonoscopy, and, with traditional colonoscopy, the examiner could recover immediately. | ||
==References== | ==References== | ||
{{reflist|2}} | |||
Revision as of 16:03, 22 June 2010
In gastroenterology, capsule endoscopy is a gastrointestinal endoscopy that "non-invasive, endoscopic imaging by use of video capsule endoscopes to perform examination of the gastrointestinal tract, especially the small bowel."[1]
Technology
The core technology is a video camera and lights that transmit to antennas wrapped around the body. Beyond this, however, newer capsules contain accelerometers and gyroscopes that can time and track its passage through the body. [2]
Clinical benefits
The benefit of capsule endoscopy in the evaluation of gastrointestinal hemorrhage is uncertain according to a randomized comparison to diagnostic imaging.[3]
Potentially, the ability of the capsule to track its speed and direction can provide information on gastrointestinal mobility at a level not available from other modalities.
Risks
It is possible that a partial occlusion of the gastrointestinal tract could entrap the capsule. This is not a risk with virtual colonoscopy, and, with traditional colonoscopy, the examiner could recover immediately.
References
- ↑ Anonymous (2024), Capsule endoscopy (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ Colin S. McCaffery, Olivier Chevalerias, Cian O’Mathuna, and Karen Twomey (2008), "Swallowable-Capsule Technology", Pervasive Computing
- ↑ Laine L, Sahota A, Shah A (2010). "Does capsule endoscopy improve outcomes in obscure gastrointestinal bleeding? Randomized trial versus dedicated small bowel radiography.". Gastroenterology 138 (5): 1673-1680.e1; quiz e11-2. DOI:10.1053/j.gastro.2010.01.047. PMID 20138043. Research Blogging.