Prof. Andreas Kjaer

Prof. Andreas Kjaer is Professor of Nuclear Medicine and Head of the Department of Clinical Physiology, Nuclear Medicine and PET at Rigshospitalet, Copenhagen University Hospital — Denmark's premier tertiary and research hospital. A globally recognised expert in molecular imaging and theranostics, he has dedicated more than 25 years to advancing PET/CT diagnostics and radionuclide therapy. His research programme bridges the gap between molecular biology and clinical imaging, developing novel radiolabelled tracers for cancer detection, treatment planning, and therapeutic monitoring. Prof. Kjaer is a prolific investigator and has led multiple Danish and European research consortia. His patient philosophy emphasises precision oncology — using molecular imaging to characterise each patient's tumour biology and guide individualised treatment decisions.

Prof. Kjaer completed his medical degree (MD) at the University of Copenhagen and his specialist training in clinical physiology and nuclear medicine at Rigshospitalet. He earned his doctorate (PhD) in nuclear medicine and subsequently his higher doctorate (DMSc — Doctor of Medical Science), the highest Danish academic medical qualification, for his body of work on molecular imaging biomarkers in cancer. He has undertaken research fellowships at leading imaging centres in Europe and North America. He is a Fellow of the European Association of Nuclear Medicine (EANM) and holds specialist board certification in nuclear medicine in Denmark.

Prof. Kjaer's clinical expertise spans the full range of nuclear medicine diagnostics and therapy. His imaging repertoire includes FDG-PET/CT for staging and treatment response in a wide range of cancers, PSMA PET/CT for prostate cancer restaging, and DOTATATE/DOTATOC PET/CT for neuroendocrine tumours. On the therapeutic side, he leads a peptide receptor radionuclide therapy (PRRT) programme for neuroendocrine tumours and has developed expertise in PSMA-targeted radioligand therapy for castration-resistant prostate cancer. His research has contributed novel imaging biomarkers including angiogenesis PET tracers, hypoxia imaging agents, and immunoPET tracers that are now entering clinical translation.

Rigshospitalet is Copenhagen's university hospital and Denmark's national tertiary referral centre. It accepts international patients referred from other European countries and beyond for specialist nuclear medicine procedures. Prof. Kjaer's department offers PSMA PET/CT and DOTATATE PET/CT that may not be available in patients' home countries, as well as access to theranostic treatments. Copenhagen Airport is a major Scandinavian hub well connected to Europe, North America, and beyond. Prof. Kjaer consults in Danish and English. International patient referrals are coordinated through the hospital's international patient office.

Prof. Kjaer has published over 300 peer-reviewed articles in journals including the Journal of Nuclear Medicine, EJNMMI Research, Radiology, and the European Journal of Cancer. He has received the European Association of Nuclear Medicine (EANM) Award for Scientific Excellence and has been funded by the Danish Cancer Society, the Novo Nordisk Foundation, and the Danish Research Councils for his molecular imaging research programmes. He is a past President of the Danish Society of Nuclear Medicine and has served on the EANM Scientific Committee. He is a highly invited speaker at EANM, SNM, and World Molecular Imaging Society (WMIS) congresses and serves as an associate editor for leading nuclear medicine journals.