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P301. A questionnaire study assessing clinicians' knowledge about the ionizing radiation used in investigations of patients with IBD

B. Abdullah1, J. Lindsay2, 1Queen Mary, University of London, Barts and The London, School of Medicine, Uxbridge, London, United Kingdom, 2Barts and The london, United Kingdom


Inflammatory bowel disease (IBD) is a chronic disease and patients are at risk of high radiation exposure due to repeated radiologic investigations used for diagnosis and management. This mandates an assessment of the clinician's awareness and knowledge about ionizing radiation and its consequences. This study aims to assess the clinicians and IBD nurses' awareness about ionizing radiation.


A questionnaire study of doctors and IBD nurses' awareness about ionizing radiation was conducted. Participants from all London hospitals were asked to complete a hard copy multiple choice questionnaire including the radiation dose of commonly used investigations in IBD patients. The questionnaire distinguished between the consultants, trainees and IBD nurses. The results of consultants and trainees were compared.


65 participants (30 consultants, 31 trainees, 4 IBD nurses) completed the questionnaires. The mean score for all the participants was 5.45 out of 10. There was no difference in the mean score between consultants and registrars. 66% of participants achieved a score of 50% or more. Participants with high self-assessed scores did better than those with poor self-assessment (P = 0.037). 52% of the participants had attended a training course about ionizing radiation; there was no difference in the outcome between those who attended and those who did not attend. Only 23.8% and 22.2% of participants knew the correct radiation dose of abdominal CT-scan and small bowel follow through respectively. 33.8% of participants knew that abdominal CT is equivalent to 3 years of natural background radiation. 43.8% of them knew that a cumulative effective dose above 75 mSv is regarded as a high exposure and the patient is at risk of developing cancer.


Although there is an increase in this cohort compared to other reports, the knowledge about ionizing radiation doses among IBD consultants, gastroenterology trainees and IBD nurses' is poor. Training should be started from the time of medical school and repeated as part of ongoing education to maintain full awareness about the benefit versus the risk of ionizing radiation.