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Felix Ragnar Merlin König
Dr. med. Felix Ragnar Merlin König

Department of Biomedical Imaging and Image-guided Therapy
Position: Doctor-in-training

ORCID: 0009-0004-6774-5469
T +43 1 40400 58090
felix.koenig@meduniwien.ac.at

Keywords

Bone marrow Imaging; Cartilage; Joint Imaging; Musculoskeletal Diseases; Ultrahigh field MRI

Research interests

My main research focus is on musculoskeletal diseases, with particular emphasis on advanced cartilage and bone imaging using high-field MRI (3T and 7T). I investigate cartilage regeneration, bone marrow and joint imaging, as well as bone-marrow edema-like signals, with a special focus on long-term outcomes following cartilage repair. Currently, I am pursuing a PhD in Musculoskeletal and Dental Research under the supervision of Univ.-Prof. Siegfried Trattnig.

Selected publications

  1. Koenig, F.R.M. et al. (2024) ‘Bone marrow edema-like signal after cartilage repair does not affect outcomes in a five-year follow-up’, European Radiology, 35(4), pp. 1808–1817. Available at: https://doi.org/10.1007/s00330-024-11078-8.
  2. Koenig, F.R.M. et al. (2025) ‘Long-Term Impact of Intralesional Bony Overgrowth on Opposing Cartilage Integrity: Five-Year Results Following Cartilage Repair’, CARTILAGE [Preprint]. Available at: https://doi.org/10.1177/19476035251335008.
  3. Koenig, F.R.M. et al. (2025) ‘Five-Year Clinical and MRI-Based Outcomes After Cartilage Repair With or Without ACL Reconstruction: Worse Clinical Outcome after ACL Reconstruction Does not Affect Cartilage Repair Tissue Quality’, CARTILAGE [Preprint]. Available at: https://doi.org/10.1177/19476035251362433.
  4. Koenig, F.R.M. et al. (2024) ‘Beyond Clinical Examination: Utilizing MRI Surveillance to Detect Recurrence of Soft Tissue Sarcomas and Differentiate from Posttherapeutic Changes’, Biomedicines, 12(8), p. 1640. Available at: https://doi.org/10.3390/biomedicines12081640.
  5. Kroenig, J. et al. (2024) ‘Perfusion Patterns of Peripheral Pulmonary Metastasis Using Contrast-Enhanced Ultrasound (CEUS) and Their Correlation with Immunohistochemically Detected Vascularization Pattern’, Cancers, 16(19), p. 3365. Available at: https://doi.org/10.3390/cancers16193365.