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Accounting for radiation exposure from previous CT exams while deciding on the next exam: What do referring clinicians think?
Authors
Moulay Ali Nassiri
Kimberly Applegate
+11 more
Tamás Bodzay
Jin Chul Paeng
Chi Heon Kim
Donald L. Miller
Madan M. Rehani
Suphot Srimahachota
Suman Srinivasa
Mamoru Takenaka
Sera Terez
Jenia Vassileva
Weihai Zhuo
Publication date
1 October 2022
Publisher
'Elsevier BV'
Abstract
© 2022 Elsevier B.V.Purpose: To obtain clinicians’ views of the need to account for radiation exposure from previous CT scans and the advisability of a regulatory mechanism to control the number of CT scans for an individual patient. Methods: A convenience survey was conducted by emailing a link to a three-question electronic survey to clinicians in many countries, mostly through radiology and radiation protection contacts. Results: 505 responses were received from 24 countries. 293 respondents (58%) understand that current regulations do not limit the number of CT scans that can be prescribed for a single patient in a year. When asked whether there should be a regulation to limit the number of CT scans that can be prescribed for a single patient in one year, only a small fraction (143, 28%) answered ‘No’, 182 (36%) answered ‘Maybe’ and 166 (33%) answered ‘Yes’. Most respondents (337; 67%) think that radiation risk should form part of the consideration when deciding whether to request a CT exam. A minority (138; 27%) think the decision should be based only on the medical indication for the CT exam. Comparison among the 4 countries (South Korea, Hungary, USA and Canada) with the largest number of respondents indicated wide variations in responses. Conclusions: A majority of the surveyed clinicians consider radiation risk, in addition to clinical factors, when prescribing CT exams. Most respondents are in favor of, or would consider, regulation to control the number of CT scans that could be performed on a patient annually.N
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Last time updated on 29/10/2022