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Article: A questionnaire study assessing local physicians, radiologists and interns’ knowledge and practice pertaining to radiation exposure related to radiological imaging

TitleA questionnaire study assessing local physicians, radiologists and interns’ knowledge and practice pertaining to radiation exposure related to radiological imaging
Authors
KeywordsQuestionnaire study
Radiation exposure
Radiological imaging
Issue Date2011
PublisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ejrad
Citation
European Journal of Radiology, 2011 [Epub ahead of print] How to Cite?
Abstract
PURPOSE: To assess the knowledge and practice pertaining to radiation exposure related to radiological imaging among medical doctors, in relation to specialty and year of experience. METHODOLOGY: Questionnaires as recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) were distributed to doctors in tertiary hospitals by convenience sampling. Their knowledge of radiation doses of common radiological investigations was assessed by any significant difference from correct answers by sampled t-test. Comparison between specialties and between the more (>6 years experience) and less experienced doctors was made by pairwise comparisons of 'right answer minus mean difference (RMD)' using Wilcoxon Signed Ranks Test. Descriptive analysis of their knowledge of harmful effects of radiation and the practices pertaining were also performed. RESULTS: Total 93 questionnaires were sent out and 82 (88.2%, 40 interns, 24 clinicians, 18 radiologists) were returned. Radiologists had the least deviation from correct answers compared to interns (1.29 vs. 2.40, p=0.018) and physicians (1.29 vs. 2.57, p=0.046). More-experienced doctors also performed better than the less-experienced (1.69 vs. 2.57, p=0.027). 12/80 (15%) and 4/80 (5%) failed to recognize MR and US as radiation-free modalities. Only 10/80 (12.5%) knew the risk of carcinogenesis from abdominal CT and only 4/81 (5%) will discuss radiation-related hazard with patients routinely. CONCLUSION: Knowledge of medical doctors, including radiologists, towards radiation exposure of imaging is unsatisfactory and could imply a tendency of radiation misuse and under-utilization of alternative radiation-free methods. On-job training and discussion of the radiation risk with patients are advised.
DescriptionThe European Congress of Radiology (ECR 2011), Vienna, Austria, 3-7 March 2011.
Persistent Identifierhttp://hdl.handle.net/10722/137718
ISSN
2013 Impact Factor: 2.160
2013 SCImago Journal Rankings: 1.060
ISI Accession Number ID

 

Author Affiliations
  1. Kwong Wah Hospital
  2. The University of Hong Kong Li Ka Shing Faculty of Medicine
  3. The University of Hong Kong
DC FieldValueLanguage
dc.contributor.authorWong, CSen_US
dc.contributor.authorHuang, B-
dc.contributor.authorSin, HK-
dc.contributor.authorWong, WL-
dc.contributor.authorYiu, KL-
dc.contributor.authorChu, TYC-
dc.date.accessioned2011-08-26T14:32:18Z-
dc.date.available2011-08-26T14:32:18Z-
dc.date.issued2011en_US
dc.identifier.citationEuropean Journal of Radiology, 2011 [Epub ahead of print]en_US
dc.identifier.issn0720-048X-
dc.identifier.urihttp://hdl.handle.net/10722/137718-
dc.descriptionThe European Congress of Radiology (ECR 2011), Vienna, Austria, 3-7 March 2011.-
dc.description.abstractPURPOSE: To assess the knowledge and practice pertaining to radiation exposure related to radiological imaging among medical doctors, in relation to specialty and year of experience. METHODOLOGY: Questionnaires as recommended by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) were distributed to doctors in tertiary hospitals by convenience sampling. Their knowledge of radiation doses of common radiological investigations was assessed by any significant difference from correct answers by sampled t-test. Comparison between specialties and between the more (>6 years experience) and less experienced doctors was made by pairwise comparisons of 'right answer minus mean difference (RMD)' using Wilcoxon Signed Ranks Test. Descriptive analysis of their knowledge of harmful effects of radiation and the practices pertaining were also performed. RESULTS: Total 93 questionnaires were sent out and 82 (88.2%, 40 interns, 24 clinicians, 18 radiologists) were returned. Radiologists had the least deviation from correct answers compared to interns (1.29 vs. 2.40, p=0.018) and physicians (1.29 vs. 2.57, p=0.046). More-experienced doctors also performed better than the less-experienced (1.69 vs. 2.57, p=0.027). 12/80 (15%) and 4/80 (5%) failed to recognize MR and US as radiation-free modalities. Only 10/80 (12.5%) knew the risk of carcinogenesis from abdominal CT and only 4/81 (5%) will discuss radiation-related hazard with patients routinely. CONCLUSION: Knowledge of medical doctors, including radiologists, towards radiation exposure of imaging is unsatisfactory and could imply a tendency of radiation misuse and under-utilization of alternative radiation-free methods. On-job training and discussion of the radiation risk with patients are advised.-
dc.languageengen_US
dc.publisherElsevier Ireland Ltd. The Journal's web site is located at http://www.elsevier.com/locate/ejrad-
dc.relation.ispartofEuropean Journal of Radiologyen_US
dc.subjectQuestionnaire study-
dc.subjectRadiation exposure-
dc.subjectRadiological imaging-
dc.titleA questionnaire study assessing local physicians, radiologists and interns’ knowledge and practice pertaining to radiation exposure related to radiological imagingen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0720-048X&volume=In Press, Corrected Proof&spage=&epage=&date=2011&atitle=A+questionnaire+study+assessing+local+physicians,+radiologists+and+interns’+knowledge+and+practice+pertaining+to+radiation+exposure+related+to+radiological+imaging-
dc.identifier.emailWong, CS: drcswong@hku.hken_US
dc.identifier.emailHuang, B: huangbs@gmail.com-
dc.identifier.emailChu, TYC: singsingboy@gmail.com-
dc.identifier.authorityWong, CS=rp01391en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ejrad.2011.02.022-
dc.identifier.pmid21439746-
dc.identifier.scopuseid_2-s2.0-84856956891-
dc.identifier.hkuros191848en_US
dc.identifier.hkuros191572en_US
dc.identifier.hkuros191573en_US
dc.identifier.isiWOS:000300408100017-

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