1. Epworth Medical Imaging Epworth Hospital, Richmond, Victoria, Australia 2Department of Radiology, The University of Melbourne, Parkville, Victoria, Australia
2. Department of Radiology, The University of Melbourne, Parkville, Victoria, Australia 3Department of Radiology, Royal Melbourne Hospital, Parkville, Victoria, Australia
3. Department of Neurosurgery, Alfred Health, Prahran, Victoria, Australia
4. Epworth Medical Imaging Epworth Hospital, Richmond, Victoria, Australia
5. Department of Ophthalmology, The University of Auckland, Auckland, New Zealand
6. Department of Neurosurgery, The University of Melbourne, Parkville, Victoria, Australia 7Department of Neurosurgery, Royal Melbourne Hospital, Parkville, Victoria, Australia
7. Department of Anatomy and Neuroscience, Melbourne Neuroscience Institute, The University of Melbourne, Parkville, Victoria, Australia