Received: 20 September 2018
Accepted: 6 February 2020
First Online: 20 February 2020
Compliance with ethical standards
: The authors declare that there is no conflict of interest and have not any financial relationship with any sponsoring organization.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Written informed consent to the MR examination was obtained from all subjects in this study. Approval by the ethics committee was obtained, and patient’s informed consent was obtained by the ethics committee.