Funding for this research was provided by:
Japan Society for the Promotion of Science (17K18396)
Japan Radiological Society (KJ-06)
Received: 13 November 2018
Accepted: 18 January 2019
First Online: 30 January 2019
: Part of this study was presented at the 2018 SNMMI Meeting (J Nucl Med May 1, 2018 vol. 59 no. supplement 1158).
: This study was approved by the ethical committee at National Center for Global Health and Medicine.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 consents were obtained from all subjects for participation and publication of this report.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.