Funding for this research was provided by:
Centre for Research and Development, Gävle, Uppsala University Hospital, Sweden
Text and Data Mining valid from 2018-12-17
Received: 19 July 2018
Revised: 14 September 2018
Accepted: 22 October 2018
First Online: 17 December 2018
Compliance with ethical standards
: The scientific guarantor of this publication is Tony Martin Svahn.
: 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.
: One of the authors has significant statistical expertise.No complex statistical methods were necessary for this paper.
: Written informed consent was not required for this study because only exposure data and parameter settings were extracted from examinations in retrospect, in addition to phantom data.
: Institutional Review Board approval was not required because for this study because only exposure data and parameter settings were extracted from examinations in retrospect, in addition to phantom data.
: • Retrospective• Observational and experimental• Performed at one institution