Fortschr Röntgenstr 2018; 190(06): 531-541
DOI: 10.1055/s-0044-101261
Review
© Georg Thieme Verlag KG Stuttgart · New York

Dose Reduction and Dose Management in Computed Tomography – State of the Art

Article in several languages: English | deutsch
Dominik Zinsser
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
,
Roy Marcus
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
,
Ahmed E. Othman
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
,
Fabian Bamberg
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
,
Konstantin Nikolaou
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
,
Thomas Flohr
2  CTE PA, Siemens Medical Solutions, Forchheim, Germany
,
Mike Notohamiprodjo
1  Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany
› Author Affiliations
Further Information

Publication History

23 January 2017

31 December 2017

Publication Date:
13 March 2018 (eFirst)

Abstract

Background For years, the number of performed CT examinations has been rising. At the same time, computed tomography became more dose efficient. The aim of this article is to give an overview about the state of the art in dose reduction in CT and to highlight currently available tools in dose management.

Method By performing a literature research on Pubmed regarding dose reduction in CT, relevant articles were identified and analyzed.

Results and Conclusion Technical innovations with individual adaptation of tube current and voltage as well as iterative image reconstruction enable a considerable dose reduction with preserved image quality. At the same time, dedicated software tools are able to handle huge amounts of data and allow to optimize existing examination protocols.

Key points

  • CT examinations are increasingly performed and contribute considerably to non-natural radiation exposure.

  • A correct indication is crucial for each CT examination.

  • The examination protocol has to be tailored to the medical question and patient.

  • Multiple technical innovations enable considerable dose reduction with constant image quality.

  • Dose management with dedicated software tools gains importance.

Citation Format

  • Zinsser D, Marcus R, Othman AE et al. Dose reduction and dose management in computed tomography – State of the art. Fortschr Röntgenstr 2018; 190: 531 – 541