About the Authors

Mathew R. Guilfoyle

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – original draft, Writing – review & editing

mathew.guilfoyle@addenbrookes.nhs.uk

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Adel Helmy

Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Supervision, Validation, Writing – review & editing

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Joseph Donnelly

Roles Data curation

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Matthew G. Stovell

Roles Data curation

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Ivan Timofeev

Roles Data curation

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

John D. Pickard

Roles Funding acquisition

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Marek Czosnyka

Roles Writing – review & editing

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Peter Smielewski

Roles Data curation

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

David K. Menon

Roles Writing – review & editing

Affiliation Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, United Kingdom

Keri L. H. Carpenter

Roles Conceptualization, Validation, Writing – review & editing

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Peter J. Hutchinson

Roles Conceptualization, Funding acquisition, Methodology, Validation, Writing – review & editing

Affiliation Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, United Kingdom

Competing Interests

I have read the journal’s policy and the authors of this manuscript have the following competing interests: PJAH is a director of Technicam (Newton Abbot, UK), the manufacturer of the cranial access device used in this study. MC and PS have financial interest in a part of licensing fee for ICM+ software (Cambridge Enterprise Ltd., UK). This does not alter our adherence to PLOS ONE policies on sharing data and materials.