Table of Contents
ISRN Radiology
Volume 2013, Article ID 318425, 7 pages
Clinical Study

Foetal Radiation Dose and Risk from Diagnostic Radiology Procedures: A Multinational Study

1Department of Medical Physics, Grand River Regional Cancer Center, Kitchener, Canada N2G 1G3
2Department of Physics and Astronomy, University of Waterloo, Waterloo, Canada N2L 3G1
3Cancer Center of Southeastern Ontario, Kingston General Hospital, Kingston, Canada K7L 5P9
4Department of Oncology, Queens University, Kingston, Canada K7L 5P9

Received 4 June 2012; Accepted 8 July 2012

Academic Editors: M. G. Andreassi, I. Seimenis, and H.-X. Xu

Copyright © 2013 Ernest K. Osei and Johnson Darko. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In diagnostic radiology examinations there is a benefit that the patient derives from the resulting diagnosis. Given that so many examinations are performed each year, it is inevitable that there will be occasions when an examination(s) may be inadvertently performed on pregnant patients or occasionally it may become clinically necessary to perform an examination(s) on a pregnant patient. In all these circumstances it is necessary to request an estimation of the foetal dose and risk. We initiated a study to investigate fetal doses from different countries. Exposure techniques on 367 foetuses from 414 examinations were collected and investigated. The FetDoseV4 program was used for all dose and risk estimations. The radiation doses received by the 367 foetuses ranges: <0.001–21.9 mGy depending on examination and technique. The associated probability of induced hereditary effect ranges: <1 in 200000000 () to 1 in 10000 () and the risk of childhood cancer ranges <1 in 12500000 () to 1 in 500 (). The data indicates that foetal doses from properly conducted diagnostic radiology examinations will not result in any deterministic effect and a negligible risk of causing radiation induced hereditary effect in the descendants of the unborn child.