|
|
|
|
|
6th Zulqada 1435 | Tuesday, Sep 02, 2014
Health

New capsule camera to detect esophageal cancer

Wednesday, 16 January 2013
Comments(0)
Washington, January 16:

A new swallowable camera-in-a-capsule could help doctors spot early signs of esophageal cancer, offering several advantages over traditional endoscopy, researchers say.

The hi-tech transparent device is about the size of a large multivitamin pill and contains a rapidly rotating laser that shines a beam of near-infrared light onto the wall of the esophagus, the pipe that carries food to the stomach.

Researchers at the Wellman Center for Photomedicine at Massachusetts General Hospital (MGH) said the system has several advantages over traditional endoscopy.
"This system gives us a convenient way to screen for Barrett`s that doesn`t require patient sedation, a specialised setting and equipment, or a physician who has been trained in endoscopy," said researcher Gary Tearney.

"By showing the three-dimensional, microscopic structure of the esophageal lining, it reveals much more detail than can be seen with even high-resolution endoscopy," said Tearney in a statement.

The system involves a capsule containing optical frequency domain imaging (OFDI) technology - a rapidly rotating laser tip emitting a beam of near-infrared light and sensors that record light reflected back from the esophageal lining.

The capsule is attached to a string-like tether that connects to the imaging console and allows a physician or other health professional to control the system.

After the capsule is swallowed by a patient, it is carried down the oesophagus by normal contraction of the surrounding muscles. When the capsule reaches the entrance to the stomach, it can be pulled back up by the tether. OFDI images are taken throughout the capsule`s transit down and up the oesophagus.

Researchers tested the system in 13 unsedated participants - six known to have Barrett`s esophagus and seven healthy volunteers. The physicians operating the system were able to image the entire esophagus in less than a minute, and a procedure involving four passes - two down the esophagus and two up - could be completed in around six minutes.

A typical endoscopic examination requires that the patient stay in the endoscopy unit for approximately 90 minutes.

The detailed microscopic images produced by the OFDI system revealed subsurface structures not easily seen with endoscopy and clearly distinguished the cellular changes that signify Barrett`s esophagus. Study participants who had previously undergone endoscopy indicated they preferred the new procedure.

"The images produced have been some of the best we have seen of the esophagus," said Tearney.

PTI

Latest News

Top militant commander among three killed in Kashmir gunfight

Three separatist guerrillas of the Jaish-e-Muhammad (JeM) outfit were Tuesday killed in a gunfight w ...

Amid questions raised over a reported tie-up between the IRCTC - a public sector enterprise under th ...

Second beheading plunges Obama into top crisis

Just two weeks after beheading American photojournalist James Foley, the Islamic State (IS) Sunni ex ...

Related News

AIIMS sees increase in eye donors

The eye bank of AIIMS has seen a rise in the number of donors in the last couple of years, an official said Tuesday. ...

Fear grips onlookers as Ebola victim walks through market

A video footage has emerged from Liberia showing a person tagged positive for Ebola virus disease (E ...

Kala-azar free India by 2015: Harsh Vardhan

Health Minister Harsh Vardhan Monday said that India aims to eliminate dreaded vector-borne disease ...

Post new comment

CAPTCHA
This question is for testing whether you are a human visitor and to prevent automated spam submissions.
Image CAPTCHA
Copy the characters (respecting upper/lower case) from the image.

Rs. 27530 (Per 10g)

Opinion Poll
Do you think KCR would continue celebrating all national events at Golconda Fort beginning from Independence Day?
YesNoCan't say

Comments >>

Matrimony | Photos | Videos | Search | Polls | Archives | Advertise | Letters

© The Siasat Daily, 2012. All rights reserved.
Jawaharlal Nehru Road, Abids, Hyderabad - 500001, AP, India
Tel: +91-40-24744180, Fax: +91-40-24603188
contact@siasat.com