Radiation exposure in gastroenterology: Improving patient and staff protection

Immanuel K H Ho, Brooks D. Cash, Henry Cohen, Stephen B. Hanauer, Michelle Inkster, David A. Johnson, Michael M. Maher, Douglas K. Rex, Abdo Saad, Ajaypal Singh, Madan M. Rehani, Eamonn M. Quigley*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

17 Scopus citations


Medical imaging involving the use of ionizing radiation has brought enormous benefits to society and patients. In the past several decades, exposure to medical radiation has increased markedly, driven primarily by the use of computed tomography. Ionizing radiation has been linked to carcinogenesis. Whether low-dose medical radiation exposure will result in the development of malignancy is uncertain. This paper reviews the current evidence for such risk, and aims to inform the gastroenterologist of dosages of radiation associated with commonly ordered procedures and diagnostic tests in clinical practice. The use of medical radiation must always be justified and must enable patients to be exposed at the lowest reasonable dose. Recommendations provided herein for minimizing radiation exposure are based on currently available evidence and Working Party expert consensus.

Original languageEnglish (US)
Pages (from-to)1180-1194
Number of pages15
JournalAmerican Journal of Gastroenterology
Issue number8
StatePublished - Aug 2014

ASJC Scopus subject areas

  • Hepatology
  • Gastroenterology


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