1 Department of Clinical Radiology, Salisbury NHS Foundation Trust, Salisbury, United Kingdom. Electronic address: graham.lloyd-jones@nhs.net.
2 Department of Clinical Radiology, Salisbury NHS Foundation Trust, Salisbury, United Kingdom. Electronic address: ralcock@nhs.net.
3 University of Groningen, Groningen, The Netherlands; Institute for Diagnostic Accuracy, Groningen, The Netherlands. Electronic address: m.oudkerk@rug.nl.