Footnotes

• 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 BBF has an equity position in a private imaging clinic in Vancouver BC. WP conducts research and has an equity stake in a company focused on machine learning for Radiology.

• Patient consent Not required.

• Provenance and peer review Not commissioned; externally peer reviewed.