Relative collective dose distribution of CT among all diagnostic X-ray examination in AA, Ethiopia governmental hospitals from September 2015 – August 2016.


  • seife Teferi Dellie AAU
  • DANIEL Admassie AAU
  • Abay Desta AAU


Background: Computed tomography (CT) is a major source of ionizing radiation exposure in medical diagnostic imaging. Compared to adults, children are supposed to be more susceptible to radiation risks than adults. Despite these, as of many literatures, referring physician’s knowledge of pediatric CT doses and possible risks incurred following the procedure is in adequate. Hence the objective of this work is to assess the awareness of pediatric residents and medical interns about pediatric CT dose and possible risks..
Methods: A cross-sectional study was conducted on May/ 2016 among year I to year III pediatric residents and 2015/2016 year medical interns attaching pediatrics department during study period in Tikur Anbessa Specialized Referral and Teaching Hospital. Data was collected by distributing standardized structured questionnaires. Finally, after the data was checked for clarity and completeness it was analyzed by using SPSS software .
Result: While the majority (76.3%) of the residents and interns knew that children were more sensitive to radiation than adults, 93.7% did not know that there is currently no annual dose limit set for medical exposure of patients. The majority of the respondents (81.3%) know the risk of cancer from CT scan, but most (60%) of the respondents did not know that many imaging facilities still use adult doses for pediatric patients. Furthermore 18.8% thought that magnetic resonance imaging involves ionizing radiation and 8.9% of the physicians associated ultrasound examinations with ionizing radiation. Within resident group, the level of clinical experience did not affect the outcome.



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How to Cite

Dellie, seife T., Admassie, D., & Desta, A. (2019). Relative collective dose distribution of CT among all diagnostic X-ray examination in AA, Ethiopia governmental hospitals from September 2015 – August 2016. Ethiopian Medical Journal, 57(4). Retrieved from



Original Article