Funding for this research was provided by:
National Natural Science Foundation of China (81301988)
National Institute of Biomedical Imaging and Bioengineering (5T32EB1680)
ShenghuaYuying Project of Central South University
Natural Science Foundation of Hunan Province for Young Scientists, China (No: 2018JJ3709)
RSNA research fellow grant (RF1802)
SIR Foundation resident research grant
Research Fund for International Young Scientist by the National Natural Science Foundation of China (818580410556)
Received: 3 November 2018
Accepted: 9 January 2019
First Online: 19 January 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: For this type of study, formal consent is not required.