(Video courtesy of the Journal of the American Medical Association)
While the 2010 US National Lung Screening Trial (NLST) proved that using CT scans to diagnose lung cancer in heavy smokers reduced deaths by 20 percent compared to conventional x-rays, questions about the cost-effectiveness of doing so remain. Whether adding the ability to diagnose COPD in these patients tips the balance in favor of CT screening in this population is unclear. The study appears in the Oct. 26, 2011 Journal of the American Medical Association. (Link to published site)