Received: 26 September 2021
Accepted: 17 January 2022
First Online: 22 January 2022
: This study was approved by the Institutional Review Board of the Third Hospital of Hebei Medical University and was conducted in accordance with the Declaration of Helsinki. As this was a retrospective study and all patient information was deidentified before analysis, informed consent was only required for patients whose radiological images would be published.
: Written informed consent was obtained from participants whose radiological data have been published in the journal.
: All the authors declare that they have no conflicts of interest with any organization that sponsored the research.