Christen is a Diagnostic and Academic Neuroradiologist, Partner Radiologist and Chair of the Research Committee at Jones Radiology, Staff Specialist Radiologist at Royal Adelaide Hospital, Research Fellow at the South Australian Health and Medical Research Institute, and the only practicing Australian to have been a Consultant Neuroradiologist at Queen Square, London. He has a PhD in Stroke imaging from Royal Melbourne Hospital. His neuroanatomy chapter in Clinical Neuroradiology, the textbook of the European Society, has been downloaded over 450,000 times. In 2024, Christen became Australia’s First Radiologist to become a certified Clinical Hypnotherapist, in order to treat patients on waiting lists for MRI with claustrophobia. Chris is an experienced teacher and leads the private Neurology and Neurosurgery MDT meetings at Calvary Adelaide Hospital.