Cited by 202Radiation Dose and ImagingEffects of Radiation ExposureGlobal Cancer Incidence and Screening

Are the studies on cancer risk from CT scans biased by indication? Elements of answer from a large-scale cohort study in France

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Journy, N, Rehel, J-L, Ducou Le Pointe, H, Lee, C, Brisse, H, Chateil, J-F, Caer-Lorho, S, Laurier, D +1 more·2015·British Journal of Cancer

Abstract

BACKGROUND: Recent epidemiological results suggested an increase of cancer risk after receiving computed tomography (CT) scans in childhood or adolescence. Their interpretation is questioned due to the lack of information about the reasons for examination. Our objective was to estimate the cancer risk related to childhood CT scans, and examine how cancer-predisposing factors (PFs) affect assessment of the radiation-related risk. METHODS: The cohort included 67,274 children who had a first scan before the age of 10 years from 2000 to 2010 in 23 French departments. Cumulative X-rays doses were estimated from radiology protocols. Cancer incidence was retrieved through the national registry of childhood cancers; PF from discharge diagnoses. RESULTS: During a mean follow-up of 4 years, 27 cases of tumours of the central nervous system, 25 of leukaemia and 21 of lymphoma were diagnosed; 32% of them among children with PF. Specific patterns of CT exposures were observed according to PFs. Adjustment for PF reduced the excess risk estimates related to cumulative doses from CT scans. No significant excess risk was observed in relation to CT exposures. CONCLUSIONS: This study suggests that the indication for examinations, whether suspected cancer or PF management, should be considered to avoid overestimation of the cancer risks associated with CT scans.

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Crossref · 10.1038/bjc.2014.526

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  1. Journy N (2014) Analysis of the Relation Between Ionizing Radiation Exposure from Computed Tomography Scans in Childhood and Cancer Incidence, Within the "Cohorte Enfant Scanner" Study (Unpublished Doctoral Dissertation). Paris Sud University: Le Kremlin Bicêtre, France.
  2. Journy N, Rehel JL, Ducou Le Pointe H, Lee C, Brisse H, Chateil JF, Caer-Lorho S, Laurier D, Bernier MO (2015) Are the studies on cancer risk from CT scans biased by indication? Elements of answer from a large-scale cohort study in France. Br J Cancer 112(1): 185–193. 25314057 PMC4453597

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Authors
Journy, N., Rehel, J.-L., Ducou Le Pointe, H., Lee, C., Brisse, H., Chateil, J.-F., Caer-Lorho, S., Laurier, D., & Bernier, M.-O.
Affiliations
  • Institut de Radioprotection et de Sûreté Nucléaire (FR)
  • National Institutes of Health (US)
  • Institut Curie (FR)
  • Hôpital Pellegrin (FR)
Corresponding author
Bernier, M-O
Venue
British Journal of Cancer
Published
2014-10-14
Volume
112
Issue
1
Pages
185-193
ISSN
  • 0007-0920 (ISSN-L)
  • 1532-1827
OpenAlex
W1502222060
Cited by
202
References
40
Citations by year
2026: 8 · 2025: 6 · 2024: 9 · 2023: 12 · 2022: 15 · 2021: 23 · 2020: 20 · 2019: 18 · 2018: 17 · 2017: 19 · 2016: 33 · 2015: 21 · 2013: 1
FWCI
18.99
Type
journal article
Language
en
Open access
Locations
  • British Journal of Cancer (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
  • European Commission (269912)
  • Centre Hospitalier Régional Universitaire de Montpellier
  • Assistance publique-Hôpitaux de Paris
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiation Dose and Imaging
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Effects of Radiation Exposure
  • Health Sciences › Medicine › Oncology › Global Cancer Incidence and Screening
Keywords
radiation-induced cancer risk, confounding by indication, cumulative radiation dose, central nervous system tumors, pediatric leukemia, pediatric lymphoma, childhood cancer incidence
MeSH terms
Child, Child, Preschool, Female, France, Humans, Male, Neoplasms, Tomography, X-Ray Computed, Cohort Studies, Incidence, Risk Assessment

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