Featured Research

from universities, journals, and other organizations

New Screening Technologies Improve Detection Of Polyps During Colonoscopy

Date:
October 10, 2008
Source:
American College of Gastroenterology
Summary:
Two new studies highlight new technologies with the potential to improve the detection of colorectal polyps and flat lesions during colonoscopy.

Two studies presented at the American College of Gastroenterology's 73rd Annual Scientific Meeting in Orlando highlight new technologies with the potential to improve the detection of colorectal polyps and flat lesions during colonoscopy.

Related Articles


The American College of Gastroenterology endorses colonoscopy as the preferred strategy for colorectal cancer screening because of its remarkable sensitivity in detecting and removing polyps before they become cancerous.

In a prospective study of 214 patients conducted at eight medical institutions in the United States, Dr. Douglas K. Rex of Indiana University Medical Center in Indianapolis, Dr. Jerome D. Waye of Mount Sinai Hospital in New York, and their research team evaluated the effectiveness of a new imaging device (Third Eye Retroscope ™) that provides a 180-degree retrograde view of the colon, while complementing the forward view of the standard colonoscope.

Retroscope Device Boosts Polyp Detection in the Colon

Researchers found that the retroscope, when combined with the standard colonoscope, significantly increased the detection of adenomas and other polyps. Investigators identified 203 polyps and 105 adenomas, which were removed with the standard colonoscope. The retroscope detected 13.3 percent additional polyps and 12.4 percent additional adenomas. All polyps were removed by standard colonoscope.

According to lead investigator Dr. Rex, "This new device has the potential to improve dramatically the detection of neoplasia during colonoscopy. Additional technical improvements are expected, which will make the device more effective and efficient."

Study Finds Narrow Band Imaging Improves Detection of Flat Lesions in the Colon

In a separate analysis conducted at Valduce Hospital in Como, Italy, Dr. Franco Radaelli and his colleagues evaluated whether the use of narrow band imaging (NBI) versus white light during the withdrawal phase of colonoscopy could enhance the detection of flat or depressed colorectal lesions.

Two hundred fifteen patients, ages 50 to 69, who had a positive fecal occult blood test, underwent screening colonoscopy. The patients were randomized to a white light (107 patients) or narrow band imaging (108 patients) during the retraction phase – or withdrawal of the scope – of colonoscopy.

Researchers found narrow band imaging significantly improved the detection of flat or depressed lesions, but did not increase the adenoma detection rate. Twelve percent of patients with at least one flat or depressed lesion were detected by white light, compared to 23 percent using narrow band imaging.

"Narrow band imaging technique seems to increase the sensitivity of the exam in detecting non-polypoid lesions and deserves further evaluation," says Dr. Radaelli.


Story Source:

The above story is based on materials provided by American College of Gastroenterology. Note: Materials may be edited for content and length.


Cite This Page:

American College of Gastroenterology. "New Screening Technologies Improve Detection Of Polyps During Colonoscopy." ScienceDaily. ScienceDaily, 10 October 2008. <www.sciencedaily.com/releases/2008/10/081006092648.htm>.
American College of Gastroenterology. (2008, October 10). New Screening Technologies Improve Detection Of Polyps During Colonoscopy. ScienceDaily. Retrieved November 28, 2014 from www.sciencedaily.com/releases/2008/10/081006092648.htm
American College of Gastroenterology. "New Screening Technologies Improve Detection Of Polyps During Colonoscopy." ScienceDaily. www.sciencedaily.com/releases/2008/10/081006092648.htm (accessed November 28, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Friday, November 28, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Ebola Leaves Orphans Alone in Sierra Leone

Ebola Leaves Orphans Alone in Sierra Leone

AFP (Nov. 27, 2014) — The Ebola epidemic sweeping Sierra Leone is having a profound effect on the country's children, many of whom have been left without any family members to support them. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
Experimental Ebola Vaccine Shows Promise In Human Trial

Experimental Ebola Vaccine Shows Promise In Human Trial

Newsy (Nov. 27, 2014) — A recent test of a prototype Ebola vaccine generated an immune response to the disease in subjects. Video provided by Newsy
Powered by NewsLook.com
Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins