Occupational radiation exposure and its health effects on interventional medical workers: Study protocol for a prospective cohort study

Seulki Ko, Hwan Hoon Chung, Sung Bum Cho, Young Woo Jin, Kwang Pyo Kim, Mina Ha, Ye Jin Bang, Yae Won Ha, Won Jin Lee

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Introduction Although fluoroscopically guided procedures involve a considerably high dose of radiation, few studies have investigated the effects of radiation on medical workers involved in interventional fluoroscopy procedures. Previous research remains in the early stages and has not reached a level comparable with other occupational studies thus far. Furthermore, the study of radiation workers provides an opportunity to estimate health risks at low doses and dose rates of ionising radiation. Therefore, the objectives of this study are (1) to initiate a prospective cohort study by conducting a baseline survey among medical radiation workers who involve interventional fluoroscopy procedures and (2) to assess the effect of occupational radiation exposure and on the overall health status through an in-depth cross-sectional study. Methods and analysis Intervention medical workers in Korea will be enrolled by using a self-administered questionnaire survey, and the survey data will be linked with radiation dosimetry data, National Health Insurance claims data, cancer registry and mortality data. After merging these data, the radiation organ dose, lifetime attributable risk due to cancer and the risk per unit dose will be estimated. For the cross-sectional study, approximately 100 intervention radiology department workers will be investigated for blood tests, clinical examinations such as ultrasonography (thyroid and carotid artery scan) and lens opacity, the validation of badge dose and biodosimetry. Ethics and dissemination This study was reviewed and approved by the institutional review board of Korea University (KU-IRB-12-12-A-1). All participants will provide written informed consent prior to enrolment. The findings of the study will be disseminated through peer-reviewed scientific journals, conference presentations, and a report will be submitted to the relevant public health authorities in the Korea Centers for Disease Control and Prevention to help with the development of appropriate research and management policies.

Original languageEnglish
Article numbere018333
JournalBMJ open
Issue number12
Publication statusPublished - 2017 Dec 1

Bibliographical note

Funding Information:
Funding This work was supported by the Korea Ministry of Health and Welfare and Center for Disease Control and Prevention (grant no 2017E3600600) from 13 April 2017 to 12 February 2018.

Publisher Copyright:
© 2017 Article author(s). All rights reserved.


  • cohort
  • fluoroscopically guided procedures
  • medical workers
  • occupational exposure
  • radiation

ASJC Scopus subject areas

  • General Medicine


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