Abstract
Purpose
To prospectively evaluate the value of whole-body cancer screening with multiple modalities including FDG-PET in a healthy population.
Methods
The study was conducted in 1197 healthy individuals aged ≥ 35 years at enrollment between August 2003 and July 2004. All participants were scheduled to receive annual whole-body cancer screening five times (screening period) with subsequent long-term follow-up (follow-up period). The endpoints of the study were definitive cancer diagnosis, cancer-related death, and all-cause death.
Results
The follow-up rate was 99.8% for the screening period and 96.2% for the follow-up period. Forty-five cancers were confirmed during the screening period (August 2003 to July 2009), and 37 of the 45 were detected by the screening. Fourteen of the 45 were PET positive. Sixteen, 5, 4, 9 and 11 cancers were confirmed after the first, the second, the third, the fourth, and the fifth (took 2 years) screening, respectively. Eight participants died, of whom five died of cancer. The rate of cancer incidence (per 100,000) of 628.7 (95% confidence interval [CI] 445.0–812.4) was significantly high, and the rates of cancer mortality and all-cause mortality of 69.9 (95% CI 8.6–131.1) and 111.8 (95% CI 34.3–189.2), respectively, were significantly low, compared with the corresponding rates of 379.3, 138.2 and 354.2, respectively, in the age-rank- and sex-matched general population. During the follow-up period (August 2009 to July 2013), 37 cancers were confirmed and 30 of the 37 were detected. Seven participants died, of whom three died of cancer. The rate of cancer incidence was 809.6 (95% CI 548.7–1070.5). The rates of cancer mortality and all-cause mortality of 65.6 (95% CI 0–139.9) and 153.2 (95% CI 39.7–266.6), respectively, were significantly low compared with 190.1 and 462.3, respectively, in the general population.
Conclusion
Cancer detection by PET alone was limited. While the high cancer incidence was attributed to the extensive screening, the low cancer and all-cause mortality may indicate the potential value of this type of cancer screening. Cancer incidence increases with aging and it has been shown that continuous screening may reduce the risk caused by the cancer progression.
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Acknowledgements
We thank all the collaborated staff of this research in the Hamamatsu Medical Imaging Center, Hamamatsu Photonics KK and the Photonics Group Health Insurance Society.
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Nishizawa, S., Kojima, S., Okada, H. et al. Ten-year prospective evaluation of whole-body cancer screening with multiple modalities including [18F]fluorodeoxyglucose positron emission tomography in a healthy population. Ann Nucl Med 34, 358–368 (2020). https://doi.org/10.1007/s12149-020-01456-9
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DOI: https://doi.org/10.1007/s12149-020-01456-9