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Point and Counterpoint |

Rebuttal From Dr McCunneyRebuttal From Dr McCunney

Robert J. McCunney, MD, MPH
Author and Funding Information

From Brigham and Women’s Hospital.

CORRESPONDENCE TO: Robert J. McCunney, MD, MPH, Brigham and Women’s Hospital, 75 Francis St, Boston, MA 02215; e-mail: mccunney@mit.edu


FINANCIAL/NONFINANCIAL DISCLOSURES: The author has reported to CHEST that no potential conflicts of interest exist with any companies/organizations whose products or services may be discussed in this article.

Reproduction of this article is prohibited without written permission from the American College of Chest Physicians. See online for more details.


Chest. 2015;147(4):877-878. doi:10.1378/chest.14-3021
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Extract

Dr Doss raises interesting points about low-dose radiation and cancer risks, including a role for hormesis in reducing risk of cancer.1 Although a uniform definition of low-dose radiation appears lacking, we agree that radiation concerns are insignificant in therapeutic and diagnostic uses. In contrast, lung cancer screening programs, performed on healthy people without symptoms, are intended to last at least 25 years and involve radiation exposure in screening and diagnostic follow-up of nodules.2 Annual low-dose CT scans will be accompanied by the inevitable follow-up of suspicious nodules, > 96% of which were benign in the National Lung Screening Trial (NLST).3

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