How many lives can be saved by CT screening of smokers?

 - lungs
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Following the National Lung Screening Trial, which demonstrated a 20 percent reduction in lung cancer mortality for low-dose CT screening in high-risk patients, some have clamored for expanded CT screening efforts.

In an interview produced for PBS’ Newshour, Claudia Henschke, MD, of Mount Sinai Hospital in New York City, argues that many of the more than 150,000 annual lung cancer deaths in the U.S. could be prevented if CT screening were used to spot cancers earlier: