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May 9, 2026The Journal of Maternal-Fetal & Neonatal MedicineOpen Access

Radiologic examinations in pregnancy: a critical appraisal of radiation and contrast risks

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Authors

AFAlexandra D. ForrestMMMahadevappa MaheshEFE K Fishman

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Overview

Narrative review examines fetal radiation exposure in pregnancy, highlighting risks and clinical appropriateness.

Key Points

  • The aim is to critically assess the risks of radiation and contrast exposure during pregnancy and to highlight the clinical contexts for imaging.
  • Narrative review of literature on radiologic examinations during pregnancy.
  • Evaluation of guideline statements from professional societies and analysis of large cohort and case-control studies.
  • Incorporation of updated dosimetric data regarding fetal radiation exposure.
  • Fetal radiation exposure from most diagnostic studies is under 25 mGy, lower than the 50-100 mGy threshold for teratogenicity.
  • Deterministic effects like structural anomalies are not observed at diagnostic dose levels.
  • Stochastic risks, including childhood cancer, are negligible or minimally increased, supporting continued use of imaging when necessary.

Cite This Study

Forrest et al. (2026) studied this question.

synapsesocial.com/papers/69fecf16b9154b0b828761f4https://doi.org/10.1080/14767058.2026.2668856
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