Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Swallowing a tiny imaging capsule aids in diagnosis of obscure gastrointestinal bleeding

21.10.2002


The use of a small wireless capsule video device to detect bleeding in the small intestine is safe, well-tolerated, and more accurate than another common diagnostic approach according to a study presented at the 67th Annual Scientific Meeting of the American College of Gastroenterology.



"The investigation of obscure gastrointestinal bleeding is often difficult due to limitations of conventional endoscopic studies in the detection of disorders in the small intestine," said Ramona M. Lim, M.D., of the University of Miami School of Medicine/Mount Sinai Medical Center in Miami, FL.

Patients with obscure GI bleeding experience bleeding of unknown origin that persists or recurs after a negative initial endoscopy (colonoscopy and/or upper GI endoscopy). For some of these patients the bleeding may be caused by lesions in the small intestine that would not be detected with colonoscopy or upper GI endoscopy.


In wireless capsule endoscopy, the patient swallows a tiny imaging capsule that incorporates a light source, video camera, battery, antenna, and radio transmitter. Images of the intestinal tract are transmitted twice each second by radio frequency to an array of sensors worn around the patient’s abdomen and the signals are digitally recorded on a device that is later downloaded. The patient swallows the capsule in the morning and wears the recording device for 8 hours. The capsule is eliminated and discarded. A gastroenterologist reviews the images.

Dr. Lim and her colleagues studied 20 patients with GI bleeding from an unidentified source.

Researchers evaluated these patients using the wireless capsule technology, then followed up using a technique known as push enteroscopy. In push enteroscopy, a four-foot long tube outfitted with a small video camera is inserted down the esophagus, through the stomach and into the first third of the small intestine. The researchers found that wireless capsule endoscopy identified potential sources of bleeding in 70 percent of the patients, compared to 45 percent with push enteroscopy.

While the Miami study revealed that this technology is more sensitive than push enteroscopy in detecting problems in the small intestine, it is not without drawbacks. With wireless capsule endoscopy a gastroenterologist cannot biopsy or treat bleeding in the small intestine. The use of this technology is not appropriate for patients with bowel obstructions.

Melissa Emick | EurekAlert!
Further information:
http://www.acg.gi.org/

More articles from Health and Medicine:

nachricht How cancer metastasis happens: Researchers reveal a key mechanism
19.01.2018 | Weill Cornell Medicine

nachricht Researchers identify new way to unmask melanoma cells to the immune system
17.01.2018 | Duke University Medical Center

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Thanks for the memory: NIST takes a deep look at memristors

22.01.2018 | Materials Sciences

Radioactivity from oil and gas wastewater persists in Pennsylvania stream sediments

22.01.2018 | Earth Sciences

Saarland University bioinformaticians compute gene sequences inherited from each parent

22.01.2018 | Life Sciences

VideoLinks Wissenschaft & Forschung
Overview of more VideoLinks >>>