Received: 6 March 2018
Accepted: 28 June 2018
First Online: 24 July 2018
Ethics approval and consent to participate
: The ethics committee of Klinikum rechts der Isar, TU München has approved this retrospective study (475/17S). All patients gave their informed consent to undergo CT for radiotherapy treatment planning. The need for a second informed consent for this retrospective study on CT datasets was deemed unnecessary and has been waived by the IRB.
: Not applicable.
: MND is an editor of BMC cancer. All other authors declare that they have no competing interests.
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