He has published more than 60 publications in international journals, five book chapters on stereotactic radiotherapy for lung tumors, and one on intra-operative brachytherapy. In the last 13 years, Dr. Nuyttens has been using the CyberKnife® system to treat early-stage NSCLC and oligometastasis. He is also a project member of the Holland Proton Therapy Center in Delft.