Navigation Links
CT Scans Reduce Lung Cancer Deaths, Study Confirms
Date:5/23/2013

By Randy Dotinga
HealthDay Reporter

WEDNESDAY, May 22 (HealthDay News) -- Physicians weighing the benefits and risks of CT scans for detecting lung cancer now have more information to help with the decision. A new analysis of a 2010 U.S. study finds that low-dose CT scans pick up significantly more lung tumors than chest X-rays do.

People with a long history of smoking are at high risk for lung cancer, the deadliest form of cancer in the United States. But doctors have to consider the potential harm of radiation exposure when ordering screening. The initial 2010 trial suggested that the low-dose CT scans can save lives, but they're not yet routine and insurers typically don't pay for them.

"There's a whole bunch of stuff that has to be worked out," said Dr. Norman Edelman, chief medical officer of the American Lung Association. This includes the prospect of expanding screening to a wider group and relying on radiologists less experienced than those who reviewed the lung scans in the initial study.

Already, some medical centers are offering CT lung scans below cost, at $200 or $300, apparently in the hope that they'll recoup their loss by detecting suspicious nodules in the lungs of patients, he said.

About 158,000 people die from lung cancer in the United States each year, often because it's detected too late for effective treatment. The new analysis of the 2010 study indicated that by identifying malignancies sooner, low-dose CT scans will reduce the death tally.

Who should get screened is a question that must be addressed, said Dr. Otis Brawley, chief medical officer and executive vice president of the American Cancer Society. "Everyone wants to jump toward screening as an answer," Brawley said.

The initial study involved 53,000 current and former heavy smokers, aged 55 to 74, who underwent a CT scan or chest X-ray every year for three years, starting in 2002.

By 2010, the death rate among those who got the CT scans was 20 percent lower than for those who got X-rays.

CT scans revealed potential signs of cancer in 27 percent of those scanned, compared to 9 percent of people who got X-rays, the researchers found. In both groups, about 91 percent had at least one more test.

Most of those suspicious spots and nodules weren't actually cancerous.

After follow-up, lung cancer was diagnosed in 1.1 percent of the patients in the CT group and 0.7 percent of the X-ray group, the researchers reported in the May 23 issue of the New England Journal of Medicine.

The CT scans were much more likely to pick up lung cancer in its early, more treatable stages: stage 1 cancer was found in 158 CT scan patients versus 70 X-ray patients, according to the study.

Brawley said, however, that screening comes with a price, and not just the cost of the scans, which can be expensive. About 1 percent of cancers are thought to be caused by radiation used in medicine, he said. That raises the prospect that some people will develop cancer because they've been scanned for it.

Patients may still decide that cancer screening is appropriate, Brawley said. "We support those who understand the benefits and risks and want to get screened," he said.

"[However], stopping smoking still provides a lot more bang for the buck," he said. "Don't look to lung cancer screening as a great Shangri-La."

Preliminary research presented Tuesday at the American Thoracic Society meeting in Philadelphia found that in a smaller group of smokers and former smokers, 6 percent who underwent low-dose CT scans had lung cancer detected.

More information

For more about lung cancer, see the U.S. National Library of Medicine.

SOURCES: Norman Edelman, M.D., chief medical officer, American Lung Association, Chicago; Otis Brawley, M.D., chief medical officer and executive vice president, American Cancer Society, Atlanta; May 23, 2013, New England Journal of Medicine


'/>"/>
Copyright©2012 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Children Who Have CT Scans May Face Higher Cancer Risk
2. Small increase in cancer risk following CT scans in childhood and adolescence
3. Low radiation scans help identify cancer in earliest stages
4. Study Supports Using Low-Dose CT Scans to Spot Early Lung Cancer
5. Few to no work efficiencies when different providers read different scans on same patient
6. Scans May Reveal Pre-Schizophrenia Brain Changes
7. Revolutionary imaging software offers more detailed, clearer scans of heart conditions
8. Brain Scans May Explain Thinking, Memory Problems in Some MS Patients
9. Scans That Gauge Heart Scarring May Spot High-Risk Patients
10. Scans Show Details of Damage to Soldiers With Head Injuries
11. Benefits of CT Scans May Outweigh Cancer Risk for Young Adults
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
CT Scans Reduce Lung Cancer Deaths, Study Confirms
(Date:8/18/2017)... ... 18, 2017 , ... Hernandez Insurance Agencies, a northern Virginia ... greater DC region, is inaugurating a “New Leash On Life” charity initiative in ... them to be companions for veterans in need. , The Semper K9 organization ...
(Date:8/18/2017)... ... August 18, 2017 , ... Moore Insurance, a ... in east Texas, is launching a regional charity effort to provide publicity assistance ... the Pediatric Brain Tumor Foundation (PBTF) has raised nearly $30 million in donations ...
(Date:8/18/2017)... Saint John, IN (PRWEB) , ... August 18, 2017 , ... ... services to communities in northwest Indiana, is campaigning in support of Campagna Academy in ... Formerly referred to as the “Hoosier Boys’ Town of Indiana,” Campagna Academy is a ...
(Date:8/18/2017)... ... , ... The Golseth Agency, a Texas based insurance management and financial planning ... charity campaign organized to provide support to Christina Upchurch and her two children after ... her children returned from out of town to find her husband passed away and ...
(Date:8/18/2017)... ... August 18, 2017 , ... ... trained practitioners specializing in bioidentical hormone replacement therapy and integrative medicine, has become ... and conditions of aging, such as menopause, andropause, thyroid disorder and adrenal insufficiencies. ...
Breaking Medicine News(10 mins):
(Date:8/14/2017)... Israel , Aug. 15, 2017 /PRNewswire/ ... of adult stem cell technologies for neurodegenerative diseases, announced ... 2017. "We are ... Phase 3 trial to investigate NurOwn ® in ... Executive Officer of BrainStorm. "We have agreements with Mass. ...
(Date:8/7/2017)... Aug. 7, 2017 Insightin Health, provider ... retention, and engagement, announced the selection of ... Product Development, effective as of February 2017. In this ... implementation strategy for our clients. Wood brings with ... consulting and business analytics within the healthcare industry. ...
(Date:8/4/2017)... 2017 The search for test results that ... consult has long been the goal of healthcare providers ... of the largest meeting of lab professionals and IVD ... research firm Kalorama Information.  The firm said scores of ... related supplies and software were at the American Association ...
Breaking Medicine Technology: