Funding for this research was provided by:
National Natural Science Foundation of China (81802217)
Natural Science Foundation of Guangdong Province (2019A1515010754)
Major Diseases Prevention and Treatment Plan (No.2018ZX-01S-002)
Received: 22 January 2020
Accepted: 1 June 2020
First Online: 12 June 2020
Ethics approval and consent to participate
: The Institutional Ethics Committee of the Guangdong Provincial People’s Hospital approved this study (No. GDREC2019359H). According to the policy for retrospective studies on clinical and radiological records, our request to waive the informed consent was approved by the institutional ethics committee. Therefore, the consents (including written and verbal consents) were not obtained from all participants in this study. However, written consents were obtained from the patients whose radiological data were provided in the Figures.
: Radiological data from four patients were provided in the Figures (Figs. InternalRef removed, InternalRef removed, InternalRef removed and InternalRef removed). They all agreed that their records can be used to illustrate the rationale of HPC. Their consents for publication were obtained and are available from the corresponding author on reasonable request.
: The authors declare that they have no competing interests.