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28.05.2018 | Computed Tomography

National survey on dose data analysis in computed tomography

Zeitschrift:
European Radiology
Autoren:
Christina Heilmaier, Reto Treier, Elmar Max Merkle, Hatem Alkadhi, Dominik Weishaupt, Sebastian Schindera
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00330-018-5408-0) contains supplementary material, which is available to authorized users.
The original version of this article was revised: The name of Hatem Alkadhi was presented incorrectly.
A correction to this article is available online at https://​doi.​org/​10.​1007/​s00330-018-5649-y.

Abstract

Objectives

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.

Results

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.

Conclusion

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.

Key Points

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.

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Zusatzmaterial
ESM 1 (DOCX 1073 kb)
330_2018_5408_MOESM1_ESM.docx
Literatur
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