Navigation Links
'Virtual' Colonoscopy an Effective Option: Study
Date:10/3/2007

The screen uses CT scans and is performed without anesthesia

WEDNESDAY, Oct. 3 (HealthDay News) -- A new study supports the effectiveness of an innovative form of colonoscopy that relies on a CT scanner that's sent through a patient's colon.

When it comes to detecting polyps that might become malignant, this so-called "virtual colonoscopy" is just as effective as the traditional approach of using a fiber-optic device, explained study lead Dr. David Kim, assistant professor of radiology at the University of Wisconsin.

The real advantage to the technology is that "it can do it in a less invasive manner for less cost and at less risk," he said.

According to the American Cancer Society, colorectal cancer is the third most common cancer in the United States among both men and women. It's especially common among people over the age of 50. An estimated 112,000 people in the United States will be diagnosed with the disease this year, and 52,000 will die.

Colonoscopies are considered essential to preventing the disease, but many people don't get them because of the cost or because of their reputation as being uncomfortable.

Virtual colonoscopies, by contrast, offer patients less discomfort, and Kim said could cost only one-third of the price.

Just as happens with the conventional test, patients using the virtual screen must still cleanse their bowels by using laxatives beforehand and have a catheter inserted into the rectum to expand their colon with carbon dioxide, Kim said.

However, unlike the traditional procedure, the patients aren't sedated, although Kim said they may feel "crampy" until the procedure is over.

CT scanners image the colons to look for signs of trouble. Doctors look at three-dimensional images on computers that "put you inside of the colon so you can navigate your way to look for polyps," Kim explained.

In the new study, Kim's team compared the effectiveness of traditional colonoscopies in 3,163 consecutive patients to virtual colonoscopies in 3,120 consecutive patients.

Reporting in the Oct. 4 issue of the New England Journal of Medicine, the researchers found that the two approaches were about equal in terms of detecting potentially dangerous polyps -- 123 were detected by virtual colonoscopy and 121 through the traditional approach. About eight percent of the patients who underwent the new approach had to return for traditional colonoscopies.

In the near future, doctors will need to screen patients using both approaches, he said. "The bottom line is that there's a huge number of people who should be screened but aren't -- 40 million people over age of 50 aren't screened. We're going to need both modalities to make an impact on this number."

Still, there are plenty of unanswered questions, said Dr. David Weinberg, director of gastroenterology at Fox Chase Cancer Center.

For one, he asked, "what does this do to overall colon cancer risk?" The study didn't look at that question, he said, and it's premature to declare that virtual colonoscopy should be a routine first-line screening test.

It's also unclear whether the new test is cost-effective or will be covered by insurance. Still, "it has potential to be useful because patients, when they know nothing about either, think they will prefer virtual colonoscopy," he said. That could lead to more of these potentially lifesaving screenings, Weinberg said.

But once they know the details -- particularly about how laxatives must still be used -- fewer people may think there's a huge difference between the two approaches, he said.

More information

For more about colorectal cancer screening options, visit the American Cancer Society.



SOURCES: David Kim, M.D., assistant professor, radiology, University of Wisconsin, Madison; David Weinberg, M.D., director, gastroenterology, Fox Chase Cancer Center, Philadelphia. Oct. 4, 2007, New England Journal of Medicine


'/>"/>
Copyright©2007 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. New virtual colonoscopy procedure for easier colon screening
2. Stanford Medical Center Implements The First Virtual Cardiac Ultrasound
3. Virtual Colonoscopy May Be Better Than Real-time Colonoscopy
4. Virtual Reality For Treating Stress Disorders
5. Hip Replacement Can Now Be Performed On Virtual Patients
6. Virtual Reality Simulation Could Help In Training Surgeons
7. New Studies Show The Efficacies Of Virtual Realities Vis-à-vis Pai
8. Virtual Meeting Place Unites Patients with Brain Tumors and Neurosurgical Disorders
9. Virtual Colonoscopy in Colorectal Cancer Prevention and Screening
10. The Tech Savvy Patient Knocks on the Doors of Telemedicine and Virtual Clinics
11. Virtual Colonoscopy is Most-effective for Screening Colon Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/16/2017)... ... August 16, 2017 , ... QualDerm Partners , a ... today announced Cumberland Skin Surgery and Dermatology has joined the company ... in both Hermitage and Lebanon, Tennessee, provides comprehensive general dermatology and skin cancer ...
(Date:8/16/2017)... ... August 16, 2017 , ... Modern Consulting ... community enrichment program. Partnering once again with Boys & Girls Clubs of Greater ... find the area’s very own American Idol. With all proceeds benefitting local worthy ...
(Date:8/16/2017)... (PRWEB) , ... August 16, 2017 , ... Maury Regional ... starts and blood draws. By broadly deploying AccuVein devices, Maury Regional Medical Center is ... of the guesswork out of a needle stick and more importantly, helps our staff ...
(Date:8/16/2017)... ... 2017 , ... The Southeastern Telehealth Resource Center at the ... its funding from the Health Resources and Services Administration (HRSA), part of the ... time the HRSA administration has renewed its financial support to GPT since 2010 ...
(Date:8/16/2017)... ... August 16, 2017 , ... Paul Vitenas, MD, FACS , ... Top Doctor. The annual list identifies the nation’s top physicians, in a variety of ... it to the top of Castle Connolly’s coveted ranking. , Castle Connolly is the ...
Breaking Medicine News(10 mins):
(Date:8/15/2017)... and Gulf Coast Regional Blood Center to host a blood ... Law family has had 3 members that needed blood products ... is partnering with Gulf Coast Regional Blood Center of ... supplies are running low. Gulf Coast Regional Blood Center,s inventory is ... is why the blood center reached out to Mostyn Law ...
(Date:8/15/2017)... 15, 2017 Diplomat Pharmacy, Inc. (NYSE: DPLO), ... Michigan residents. Naloxone is available ... retail pharmacy, G-3320 Beecher Road. ... and Drug Administration, is intended to block or reverse ... and loss of consciousness. The medication is often carried ...
(Date:8/15/2017)... N.C. , Aug. 15, 2017  Axium Pharmaceuticals Inc., the creator ... rumored to be in the beginning stages of an IPO. ... on epilepsy medications with the average cost of a prescription epilepsy drug ... ... Another staggering figure is the fact ...
Breaking Medicine Technology: