National survey on dose data analysis in computed tomography
A nationwide survey was performed assessing current practice of dose data analysis in computed tomography (CT).
Material and Methods
All radiological departments in Switzerland were asked to participate in the on-line survey composed of 19 questions (16 multiple choice, 3 free text). It consisted of four sections: (1) general information on the department, (2) dose data analysis, (3) use of a dose management software (DMS) and (4) radiation protection activities.
In total, 152 out of 241 Swiss radiological departments filled in the whole questionnaire (return rate, 63%). Seventy-nine per cent of the departments (n = 120/152) analyse dose data on a regular basis with considerable heterogeneity in the frequency (1-2 times per year, 45%, n = 54/120; every month, 35%, n = 42/120) and method of analysis. Manual analysis is carried out by 58% (n = 70/120) compared with 42% (n = 50/120) of departments using a DMS. Purchase of a DMS is planned by 43% (n = 30/70) of the departments with manual analysis. Real-time analysis of dose data is performed by 42% (n = 21/50) of the departments with a DMS; however, residents can access the DMS in clinical routine only in 20% (n = 10/50) of the departments. An interdisciplinary dose team, which among other things communicates dose data internally (63%, n = 76/120) and externally, is already implemented in 57% (n = 68/120) departments.
Swiss radiological departments are committed to radiation safety. However, there is high heterogeneity among them regarding the frequency and method of dose data analysis as well as the use of DMS and radiation protection activities.
• Swiss radiological departments are committed to and interest in radiation safety as proven by a 63% return rate of the survey.
• Seventy-nine per cent of departments analyse dose data on a regular basis with differences in the frequency and method of analysis: 42% use a dose management software, while 58% currently perform manual dose data analysis. Of the latter, 43% plan to buy a dose management software.
• Currently, only 25% of the departments add radiation exposure data to the final CT report.
KeywordsSurveys and questionnaires Patient safety Radiation protection Quality improvement Computed tomography
Actien-Gesellschaft für Anilin-Fabrication
As low as reasonably achievable
Digital Imaging and Communication in Medicine-Structured Report
Dose management software
Diagnostic reference levels
Federal Office of Health
Picture-archiving and communication system
Position emission tomography
Single-photon emission computed tomography
The authors would like to thank the executive board of the Swiss Society of Radiology for their commitment and support to perform a nationwide dose survey.
The authors state that this work has not received any funding.
Compliance with ethical standards
The scientific guarantor of this publication is Sebastian Schindera.
Conflict of interest
The authors of this manuscript declare no relationships with any companies, whose products or services may be related to the subject matter of the article.
Statistics and biometry
No complex statistical methods were necessary for this paper.
Institutional Review Board approval was not required because no patient data were analysed.
Written informed consent was not required for this study because no patient data were analysed.
• cross-sectional study
• multicentre study
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