Donald Graham, MEd, TDCR, Former Director, Radiography, School of Health Sciences, Robert Gordon University, Aberdeen, UK, Paul Cloke, MSc, TDCR, Former Lecturer in Diagnostic Imaging, Centre for Radiographic and Medical Studies, Department of Materials and Medical Science, Cranfield University, Shrivenham Campus, Swindon, Wiltshire, UK and Martin Vosper, MSc, HDCR, Senior Lecturer, Department of Radiography, University of Hertfordshire, Hatfield, UK