Detecting Imaging Biomarkers of Deep Brain Stimulation Outcome in Paediatric Dystonia

Deep brain stimulation can dramatically improve severe movement disorders in children, but doctors currently have no reliable way to predict which patients will benefit before surgery. Dystonia causes painful, uncontrollable muscle contractions that can make walking, eating, or even sitting still impossible. For children with the most severe forms, deep brain stimulation—implanting electrodes to regulate faulty neural signals—is often the best option. Yet the procedure carries risks, and roughly a third of patients see little improvement. The problem is that surgeons lack clear biomarkers to guide patient selection. This project mines existing MRI and CT scans from children treated at Alder Hey Children’s Hospital, searching for patterns in brain structure and electrode placement that correlate with good outcomes. The scans are already collected as routine clinical practice, so the research adds no extra burden on patients. If successful, the work could give clinicians a practical tool to identify which children are most likely to respond to deep brain stimulation. That would spare non-responders unnecessary surgery, reduce waiting times for those who would benefit, and help families make informed decisions about a life-altering treatment. The research is applied and directly clinical—its value lies in improving a specific medical decision that affects dozens of severely ill children each year.