HOME >> BIOLOGY >> NEWS
Little value seen in CT scans for lung cancer screening

Computed tomography (CT) scans widely marketed to consumers may not be valuable for mass screening of lung cancer, a Johns Hopkins study has found.

Results of the study, published in the Jan. 15 issue of The Journal of the American Medical Association, show that the number of lives saved by annual whole body CT screening may be outweighed by its costs and the harm of unnecessary testing for lung nodules identified that turn out to be benign. Screening was increasingly less cost-effective for those who quit smoking at the time of the first screening and for former smokers.

"Direct-to-consumer marketing and media coverage of CT trials has encouraged demand for lung cancer screening despite a lack of evidence for its efficacy," says lead author Parthiv J. Mahadevia, M.D., M.P.H., a research scientist at MEDTAP International in Bethesda, Md., who was a Robert Wood Johnson Clinical Scholar at Johns Hopkins when the study was completed. "These scans are not risk-free. There is a downside to this, including high costs and possible harm to individuals who may unnecessarily get invasive procedures if the scan detects a benign lung nodule."

An estimated 50 million men and women in the United States have ever smoked between the ages of 45 and 75, the authors note. If just half of this group received periodic annual screening, the program costs would be approximately $115 billion.

The National Cancer Institute has begun an eight-year trial comparing CT scans to chest X-rays in the diagnosis of lung cancer. But until there's solid data, consumers may want to hold off on the screenings, says senior author Neil R. Powe, M.D., M.P.H., director of Johns Hopkins' Welch Center for Prevention, Epidemiology and Clinical Research. Smoking cessation is the only proven, cost-effective method to reduce lung cancer risk, he says.

"We're not down on the technology, just its injudicious use," says Powe, also a professor of medicine and epidemiolog
'"/>

Contact: Karen Blum
kblum@jhmi.edu
410-955-1534
Johns Hopkins Medical Institutions
14-Jan-2003


Page: 1 2 3

Related biology news :

1. Little-studied waves in the heart may be cause of defibrillation failure
2. Prescott Prize to Diane and Mark Littler
3. Little yellow molecule comes up big
4. Little-known substance regulates inflammatory response
5. USGS designs fishway for Little Falls Dam
6. Baby Dolphin "Little Orphan Annie" Loses Battle For Her Life
7. Little-Explored African Genetic Diversity May Hold Key To Human Origins, Medical Questions
8. Butterflies Help Reveal The Source Of Lifes Little Luxuries
9. Combat Has Little Influence On Health Problems In Vietnam Vets
10. Russian Queens Bee-Little Mites Impact
11. Little Known Protein Prevents Formation Of Kidney Stones In Trace Amounts

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Little value seen scans for lung cancer screening

(Date:11/6/2014)... Fla. -- A groundbreaking paper from a team of ... understanding of how plants could adapt to and survive ... research, published in the latest issue of the journal ... chromatin (the complex of DNA and proteins) is organized ... so that some genes are turned on and others ...
(Date:11/6/2014)... that predator runs so fast that it essentially blinds itself. ... fastest creature on Earth. Some of these half-inch-long beetles cover ... per hour). The fastest human can do about five body ... a person would have to hit 480 miles per hour. ... speeds, everything becomes a blur. They can,t gather enough light ...
(Date:11/5/2014)... the UTSA College of Sciences, is one of ... a two-year $300,00 National Science Foundation (NSF) Early ... supports President Obama,s BRAIN Initiative, a federal effort ... will demystify complex brain processes. , According ... into the interactions of multiple components, each working ...
Breaking Biology News(10 mins):Maize analysis yields whole new world of genetic science 2The tiger beetle: Too fast to see 2UTSA biology professor awarded $300,000 NSF grant for brain research 2UTSA biology professor awarded $300,000 NSF grant for brain research 3
(Date:11/27/2014)... and PITTSFIELD, Massachusetts, USA (PRWEB) November 26, 2014 ... cells with more accuracy, additive systems to enable 3D ... safety by analyzing road conditions are among finalists in ... Photonics Innovation . The awards are sponsored by ... and Photonics Media . , Winners will be ...
(Date:11/26/2014)... 2014 The North America Thermal ... market for detailed analysis of the growth trends ... reach $616.3 million by 2018, growing at a ... Browse through the TOC of the North America ... idea of the in-depth analysis and industry segmentation ...
(Date:11/26/2014)... The Alliance for Safe Biologic ... European physicians at the "1 ST EuropaBio ... at the Spanish Ministry of Health, Social Services ... the Spanish Bioindustry Association (ASEBIO), included regulators from ... oncology and rheumatology societies, representatives from a hospital ...
(Date:11/26/2014)... NJ (PRWEB) November 25, 2014 ... has officially joined the Morris County (New Jersey) ... which is a leading business organization in the ... opportunity to further engage some key clients in ... operations in the geographic area. Membership enables Whitehouse ...
Breaking Biology Technology:Finalists Named for 2015 Prism Awards for Photonics Innovation 2Finalists Named for 2015 Prism Awards for Photonics Innovation 3Finalists Named for 2015 Prism Awards for Photonics Innovation 4Finalists Named for 2015 Prism Awards for Photonics Innovation 5The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 2The North America Thermal Protective Clothing Market is estimated to grow up to $616.3 million by 2018 - Report by MicroMarket Monitor 3ASBM Presents European Physicians Survey at Spanish Ministry of Health 2Whitehouse Laboratories Joins Morris County Chamber of Commerce 2Whitehouse Laboratories Joins Morris County Chamber of Commerce 3
Cached News: