1. Nuclear Magnetic Resonance Research Unit, Queen Square Multiple Sclerosis CentreUniversity College London Institute of Neurology London United Kingdom
2. Medical Statistics DepartmentLondon School of Hygiene and Tropical Medicine London United Kingdom
3. Department of Radiology and Nuclear MedicineVrije University, University Medical Center Amsterdam the Netherlands
4. Department of Medical Physics and Biomedical EngineeringCentre for Medical Image Computing, University College London London United Kingdom
5. National Institute for Health ResearchUniversity College London Hospitals, Biomedical Research Centre London United Kingdom
6. Lysholm Department of NeuroradiologyNational Hospital of Neurology and Neurosurgery London United Kingdom
7. King's College Hospital National Health Service Foundation Trust London United Kingdom
8. Tayside Multiple Sclerosis Research UnitNinewells Hospital Dundee United Kingdom
9. Wellcome/Engineering and Physical Sciences Research Council Centre for Interventional and Surgical SciencesUniversity College London London United Kingdom
10. School of Biomedical Engineering and Imaging Sciences, King's College London London United Kingdom
11. e‐Health Centre, Open University of Catalonia Barcelona Spain