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:8/21/2014)... (ANU) team has successfully replicated one of the crucial ... powered by sunlight which could manufacture hydrogen as a ... It is an exciting prospect to use them to ... Dr Kastoori Hingorani, from the ARC Centre of Excellence ... Biology. , Hydrogen offers potential as a zero-carbon replacement ...
(Date:8/20/2014)... 2014 George E. Fox, a John and Rebecca Moores ... (UH), was named a fellow in the International Society for ... Fox is one of four members two from the ... as fellows in 2014. Fellows are elected every three years, ... 500 members from more than 20 countries, the ISSOL includes ...
(Date:8/20/2014)... University of Tennessee, Knoxville, research finds life can persist ... professor was part of a team that examined waters ... Antarctic ice sheet and found the extreme environment supports ... by Jill Mikucki and her colleagues has implications for ... in the solar system. The findings are published in ...
Breaking Biology News(10 mins):Water and sunlight the formula for sustainable fuel 2UH professor named fellow by International Astrobiology Society 2University of Tennessee research uncovers subglacial life beneath Antarctic ice sheet 2
(Date:8/21/2014)... 21, 2014 Mathematic studies at the Program ... and funded by the Jeffrey Epstein VI Foundation , ... be visually identified for elimination. These aggressive cells are the ... shows a topological map of what to look for when ... for while tumor cells can be extracted from biopsy, it,s ...
(Date:8/21/2014)... Chester, NJ (PRWEB) August 21, 2014 ... of personal selling optimization technology and services for ... publication of “Grading Pharma’s Use of New Commercial ... of Measurement & Analytics. , The article examines ... marketing yield that are being tested in the ...
(Date:8/21/2014)... 21, 2014 On Wednesday of last week ... use Redox Signaling molecules, became available for purchase in Australia ... "The way that RENU 28 works is, if you think ... of the rate of cellular renewal within your body. If ... of that rate of cellular renewal. What RENU 28 does ...
(Date:8/20/2014)... the first time, chemists have succeeded in measuring vibrational ... resolution. The study reveals how vibration of a single ... , The study was performed at the University ... the University of Jyvskyl works as a visiting fellow ... the study. The second team was lead by Professor ...
Breaking Biology Technology:Science Power Jeffrey Epstein and Harvard University Fund Project to Visually Stop Tumor Growth 2Pursuit's Peter Robinson Publishes "Grading Pharma's Use of New Commercial Sales Models" 2RENU 28 Skin Care Now Available in Australia and New Zealand 2Seeing a molecule breathe 2
Cached News: