Fabian Kiessling studied Medicine in Heidelberg. Until 2008, he worked in the Departments of Radiology and Medical Physics in Radiology of the German Cancer Research Center. In parallel, he did his clinical training at the University of Heidelberg and received the board certification as Radiologist. Since 2008 he is leading the Institute for Experimental Molecular Imaging at the RWTH Aachen University, is one of the directors of the Helmholtz Institute for Biomedical Engineering of RWTH and since 2018 coordinates the Aachen site of Fraunhofer MEVIS.

Professor Kiessling is in the Editorial board of several scientific journals including Radiology, European Radiology, European Radiology Experimental, Molecular Imaging and Biology and Nanotheranostics.

He is currently secretary of the European Society for Molecular Imaging (ESMI), founding member of the ESMI working group “Image Guided Therapy and Drug Delivery (IGTDD)“ and he was chairman of the “Molecular Imaging” subcommittee of the European Society for Radiology (ESR). Furthermore, he was program chair of the World Molecular Imaging Conference (WMIS) in New York in 2016.

Aim of his research is the development of novel diagnostic probes, nanomedicines, and imaging tools for a disease specific diagnosis and therapy monitoring. He authored over 300 publications and book chapters, edited three books and received multiple research awards.