Funding for this research was provided by:
Toshiba Medical Systems
Text and Data Mining valid from 2018-07-13
Received: 18 April 2018
Revised: 24 June 2018
Accepted: 5 July 2018
First Online: 13 July 2018
Compliance with ethical standards
: 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 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Kazuo Awai has received research grants from Toshiba Medical Systems Co., Ltd.The other authors declare that they have no conflicts of interest.