Clinical Research Directory

Inclusion Criteria: * Have given written informed consent to participate * Assessed by a neuroscience multi disciplinary team meeting (MDT) to have a high grade glioma on imaging; * World Health Organisation Performance Scale (WHO PS 0 or 1); * Patient suitable for tumour resection where the treating neurosurgeon feels that \>90% of the enhancing tumour will be resected. Exclusion Criteria: * Pre-existing complete homonymous hemianopia or unilateral blindness or visual problems leading to patient being certified sight impaired (visual acuity of 3/60 to 6/60 with a full field of vision or visual acuity of up to 6/24 with a moderate reduction of field of vision or with a central part of vision that is cloudy or blurry). * Pre-existing severe psychiatric disease * Patients who are unsuitable for a contrast-enhanced MRI will be excluded. Such clinical problems include, but are not limited to: * MR unsafe metallic implants; * Claustrophobia; * Allergy to gadolinium contrast agent; * History of severe renal impairment.