Professor Graumann is a radiologist and serves as the chair of radiology at Aarhus University (AU). He specializes in oncology interventions, focusing on cryoablation, and is regarded as one of Europe's leading experts in the ablation of renal tumors. Additionally, he has led multiple clinical trials and research initiatives, fostering innovation in the field. Currently, he supervises various PhD students and post-doctoral researchers working on oncology interventions, artificial intelligence, virtual reality, clinical ultrasound, clinical skill training, and education.