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

Dominik Zinsser; Roy Marcus; Ahmed E. Othman; Fabian Bamberg; Konstantin Nikolaou; Thomas Flohr; Mike Notohamiprodjo

doi:10.1055/s-0044-101261

RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren, Table of Contents

Rofo 2018; 190(06): 531-541
DOI: 10.1055/s-0044-101261

Review

Dosisreduktion und Dosismanagement in der Computertomografie – Aktueller Stand

Article in several languages: English | deutsch

Dominik Zinsser

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

,

Roy Marcus

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

,

Ahmed E. Othman

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

,

Fabian Bamberg

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

,

Konstantin Nikolaou

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

,

Thomas Flohr

²CTE PA, Siemens Medical Solutions, Forchheim, Germany

,

Mike Notohamiprodjo

¹Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, Germany

› Author Affiliations

Abstract

Zusammenfassung

Hintergrund Die Zahl der durchgeführten CT-Untersuchungen steigt seit Jahren an. Zugleich ist die Computertomografie dosiseffizienter geworden. Das Ziel dieses Artikels ist es, einen Überblick über den aktuellen Stand der Dosisreduktion im CT zu geben und derzeit verfügbare Werkzeuge zum Dosismanagement vorzustellen.

Methode Mittels einer Literatursuche bei Pubmed wurden relevante Artikel, die sich mit der Dosisreduktion in der CT beschäftigen, identifiziert und ausgewertet.

Ergebnisse und Schlussfolgerung Durch technische Neuerungen mit individueller Anpassung von Röhrenstrom und -spannung sowie iterativer Bildrekonstruktion ist eine deutliche Dosisreduktion bei erhaltener Bildqualität möglich. Zugleich erlauben entsprechende Softwaretools eine weitere Optimierung bestehender Untersuchungsprotokolle, wobei auch große Datenmengen mit wenig Aufwand verarbeitet werden können.

Kernaussagen

CT-Untersuchungen werden immer häufiger durchgeführt und tragen erheblich zur nicht-natürlichen Strahlenbelastung bei.
Grundlage jeder CT-Untersuchung ist die korrekte Indikationsstellung.
Das Untersuchungsprotokoll muss auf die Fragestellung und den Patienten zugeschnitten werden.
Zahlreiche technische Neuerungen erlauben eine deutliche Dosisreduktion bei erhaltener Bildqualität.
Dosismanagement mittels entsprechender Software gewinnt zunehmend an Bedeutung.

Zitierweise

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

Key words

CT - diagnostic radiology - dose reduction - dose management

Full Text

References

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