Received: 8 November 2017
Accepted: 19 February 2018
First Online: 11 June 2018
Ethics approval and consent to participate
: All patients gave written informed consent for the use of their data for scientific purposes. Besides the standard imaging protocol and clinical management no additional measurements or actions affecting the patient were performed. Therefore, approval of the local ethical committee for the present study was not necessary since the study does not fall within the scope of the Dutch Medical Research Involving Human Subjects Act (section 1.b WMO, 26th February 1998).
: Not applicable.
: T. Opstal, dr. R.J.J. Knol, dr. J.H. Cornel, dr. M. Wondergem and dr. F.M. van der Zant have no conflicts of interest to disclose.
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