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:


(Date:6/22/2016)... June 22, 2016   Acuant , ... verification solutions, has partnered with RightCrowd ® ... for Visitor Management, Self-Service Kiosks and Continuous ... that add functional enhancements to existing physical ... and venues with an automated ID verification ...
(Date:6/16/2016)... FRANCISCO , June 16, 2016 ... size is expected to reach USD 1.83 ... by Grand View Research, Inc. Technological proliferation and ... banking applications are expected to drive the market ... ) , The development of advanced ...
(Date:6/7/2016)... 7, 2016  Syngrafii Inc. and San Antonio ... that includes integrating Syngrafii,s patented LongPen™ eSignature "Wet" ... collaboration will result in greater convenience for SACU ... while maintaining existing document workflow and compliance requirements. ... Highlights: ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... On Wednesday, June 22, 2016, the ... the Dow Jones Industrial Average edged 0.27% lower to finish ... 0.17%. Stock-Callers.com has initiated coverage on the following equities: Infinity ... NKTR ), Aralez Pharmaceuticals Inc. (NASDAQ: ... ). Learn more about these stocks by accessing their free ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... regulatory and technical consulting, provides a free webinar on Performing Quality ... 13, 2016 at 12pm CT at no charge. , Incomplete investigations are still ...
(Date:6/23/2016)... , June 22, 2016  Amgen (NASDAQ: ... of the QB3@953 life sciences incubator to ... health. The shared laboratory space at QB3@953 was created ... a key obstacle for many early stage organizations - ... of the sponsorship, Amgen launched two "Amgen Golden Ticket" ...
(Date:6/22/2016)... , June 22, 2016 Cell ... will allow them to produce up to one ... one lot within one week. These high-quality, consistent ... laboriously preparing cells and spend more time doing ... through a proprietary, high-volume manufacturing process that produces ...
Breaking Biology Technology:
Cached News: