Footnotes

• Collaborators None.

• Contributors All authors contributed to this reply.

• Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

• Competing interests VV is on speaker bureau for Philips Healthcare. GP reports research grants and/or honorarium as speaker from GE Healthcare, Bracco, Bayer, Medtronic and Heartflow.

• Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

• Patient consent for publication Not required.

• Provenance and peer review Commissioned; internally peer reviewed.