​Dr Keong is a Malaysian-born, Cambridge-trained academic neurosurgeon with an interest in reversible brain injury. In addition to obtaining a Certificate for the Completion of Training (CCT) in the UK, she was awarded MPhil and MD degrees from the University of Cambridge. For her MD, she received the Raymond Horton-Smith prize (founded 1900) for best thesis. Prior to relocating to Singapore, Dr Keong successfully applied for a Transitional Award Grant from the National Medical Research Council of Singapore to fund a longitudinal MR imaging study, SERENDIPITI, in which cross-correlations between normal pressure hydrocephalus (NPH) and secondary hydrocephalus (post-trauma and intracranial haemorrhage) are being sought. She has research interests in clinical interventions to modify disease outcomes. She was the Principal Investigator of the SILVER trial, a double-blind randomised controlled study, which produced Class I evidence for the reduction of infection using silver-impregnated external ventricular drains.