LLUMC is currently developing a new proton radiosurgical procedure that will be used to treat certain pathological symptoms such as tremors in Parkinson’s patients . The procedure involves using MRI studies to identify a small target in the patient’s brain. The role of the Clinic team is to design a complete image-based target localization system that accounts for spatial distortion in MRI and outputs corrected 3D coordinates for accurate application of the proton beam.