1. Department of Radiology, University College London Hospital NHS Foundation Trust, London, UK
2. Division of Surgery & Interventional Science, University College London, 3rd Fl, Charles Bell House, 43-45 Foley St, London, UK, W1W 7TS
3. Centre for Medical Imaging, University College London, London, UK
4. Department of Urology, University College London Hospital NHS Foundation Trust, London, UK