Dr. Henry Ma is a stroke neurologist at Monash Health. He is also adjunct senior lecturer in the Acute Stroke and Imaging division within the Stroke and Ageing Research Group (STAR) in the Dept. of Medicine, Southern Clinical School, Monash University. His Ph.D. is on "Imaging the Penumbra in Acute Stroke" at the University of Melbourne. His special research interests are in the imaging of the ischaemic penumbra and acute stroke trials. He has published many papers on these topics and is currently the international coordinator for EXTEND, a multicentred thrombolysis trial in acute stroke. He is the Director of Physician Training at Monash Medical Centre and serves as a member of the National Examiner Panel for the Royal Australasian College of Physician (RACP).