Received: 6 January 2020
Accepted: 17 May 2020
First Online: 3 August 2020
Ethics approval and consent to participate
: The local committee of the UK National Research Ethics Service approved the use of retrospectively collected training and test data, as well as collection of prospective whole heart data (06/Q0508/124), and written consent was obtained from all subjects/guardians.
: Permissions: All parents of participants and participants gave consent and assent to participate in the study. Permission was also obtained from parents to publish anonymized patient data collected.
: The authors declare that they have no competing interests.