[1] Ninewells Hosp, Dept Urol, Dundee, Scotland
[2] Univ Dundee, Sch Med, Div Imaging Sci & Technol, Dundee, Scotland
[3] Ninewells Hosp, Dept Radiol, Dundee, Scotland
[4] Univ Dundee, Sch Med, Div Populat Hlth Genom, Dundee, Scotland
[5] Univ Dundee, Sch Med, Dept Med Phys, Dundee, Scotland
[6] Aberdeen Royal Infirm, Dept Clin Radiol, Aberdeen, Scotland
[7] Royal Free London NHS Fdn Trust, Dept Clin Radiol, London, England
[8] Univ Dundee, Tayside Clin Trials Unit, Dundee, Scotland
[9] NHS Fife, Dept Clin Radiol, Kirkcaldy, Fife, Scotland
[10] Ninewells Hosp, Dept Pathol, Dundee, Scotland