Low-Dose CT Scan May Be Effective Screening Tool for Lung Cancer in People at High Risk
About the Study
- abnormalities (positive screen) found in initial screen in 27.3% with CT scan vs. 9.2% with x-ray
- positive screens over all 3 rounds in 24.2% with CT scan vs. 6.9% with x-ray
- false positive (scan indicated something when there was nothing) rate 96.4% with CT scan vs. 94.5% with x-ray
- lung cancer diagnosed in 1,060 patients with CT scan vs. 941 patients with x-ray
- lung cancer deaths occurred in 1.33% of patients with CT scan vs. 1.66% of patients with x-ray (statistically significant difference)
- death from any cause occurred in 7.02% of patients with CT scan vs. 7.48% of patients with x-ray (statistically significant difference)
How Does This Affect You?
American Lung Association http://www.lung.org/
National Cancer Institute http://www.cancer.gov/
The National Lung Screening Trial Research Team. Reduced Lung-Cancer Mortality with Low-Dose Computed Tomographic Screening. N Engl J Med 2011; 365:395 American Lung Association. ALA Provides Guidance on Lung Cancer Screening. Available at: http://www.lung.org/lung-disease/lung-cancer/lung-cancer-screening-guidelines/. Accessed May 8, 2012.
- Reviewer: Brian P. Randall, MD
- Review Date: 05/2012 -
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