Received: 12 May 2020
Revised: 16 June 2020
Accepted: 17 June 2020
First Online: 25 June 2020
Compliance with ethical standards
: JCN and AA receive research grant support from the Radiology Society of North America (RSNA) and the Children’s Cancer Research Fund (CCRF), unrelated to this project.MKN - NoneAG - NoneAS - NoneZRM - NoneBC - None
: 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 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was not required for this retrospective study.