New test could identify smokers at risk of emphysema

CT scans that measure blood flow in the lungs of people who smoke may offer a way to identify which smokers are most at risk of emphysema before the disease damages and eventually destroys areas of the lungs. The discovery may also improve understanding of the underlying causes of emphysema; help distinguish it from other forms of chronic obstructive pulmonary disease; and help test the effectiveness of emphysema therapies.

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