Funding for this research was provided by:
National Natural Science Foundation of China (81671612, 81601427)
Natural Science Foundation of Guangdong Province (2017A030313576, 2017A030313470, 2016A030313307)
China Scholarship Council (201806385034)
Received: 4 September 2019
Accepted: 12 November 2019
First Online: 11 December 2019
Ethics approval and consent to participate
: The recruited patients who were willing to receive MRI examination on bilateral hands signed a written informed consent which was approved by the Medical Ethics Committee of Sun Yat-sen Memorial Hospital (SYSEC-2009-06 and SYSEC-KY-KS-012). This study was conducted in compliance with the Helsinki Declaration.
: The consent for publication was obtained from the patient whose individual images are shown in Fig. InternalRef removed.
: The authors declare that they have no competing interests.