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Dr Begoña Rodríguez Alfonso

Diagnostic Imaging

Dr Begoña Rodríguez Alfonso

Specialist in
  • Nuclear medicine and molecular imaging using PET/CT and SPECT/CT.
  • Infectious, inflammatory, cardiovascular and systemic diseases.
  • Neuroimaging, molecular oncology, radioguided surgery and theragnosis.
«Years ago, I discovered my calling within my calling. I firmly believe that you can only truly learn what you’re passionate about.»
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Professional profile

A specialist in nuclear medicine with extensive hospital experience in molecular diagnostics using PET/CT and SPECT/CT, particularly in infectious and inflammatory, cardiovascular, neurodegenerative, neuro-oncological and oncological conditions. His clinical work focuses on the integration of functional and molecular imaging to improve the diagnosis, staging, response assessment and monitoring of complex diseases.

His career combines clinical practice, clinical research, scientific activity and leadership roles in nuclear medicine societies and working groups. He maintains a particular focus on infectious and inflammatory diseases, theragnosis, radioguided surgery and the application of nuclear medicine in systemic, cardiovascular and oncological conditions.

Education

Specialist medical training in Nuclear Medicine, supplemented by a Doctor of Medicine and Surgery and advanced training in Clinical Bioethics.

2023–2025 | Master’s Degree in Clinical Bioethics. Menéndez Pelayo International University.
2022 | Doctor of Medicine and Surgery. Autonomous University of Madrid.
2002–2006 | Specialist in Nuclear Medicine via the Resident Doctor programme. San Carlos Clinical Hospital, Madrid.
1995–2001 | Bachelor’s Degree in Medicine and Surgery. Complutense University of Madrid.

Professional experience

Clinical work in hospital-based nuclear medicine, with experience in molecular diagnostics, PET/CT, SPECT/CT, infectious and inflammatory diseases, neuroimaging, molecular oncology, radio-guided surgery and theragnosis.

2026 – Present | Specialist in Nuclear Medicine. San Carlos Clinical Hospital, Madrid.
2009 – 2026 | Specialist in Nuclear Medicine. Puerta de Hierro-Majadahonda University Hospital, Madrid.
2008 – 2009 | Specialist in Nuclear Medicine. La Paz University Hospital, Madrid.
2006 – 2008 | Specialist in Nuclear Medicine. Ciudad Real General Hospital.
2002 – 2006 | Junior Registrar in Nuclear Medicine. San Carlos Clinical Hospital, Madrid.

Scientific publications

Scientific work focusing on nuclear medicine, 18F-FDG PET/CT, infectious and inflammatory conditions, osteoarticular infection, cardiovascular infection, soft tissue sarcomas and oncological applications of functional imaging.

2025 | Noriega-Álvarez E, Rodríguez Alfonso B, Rosales Castillo JJ, et al. Role and applications of 18F-FDG PET/CT in the assessment of osteoarticular infection and inflammation – Part I. Rev Esp Med Nucl Imagen Mol. 2025. doi:10.1016/j.remnie.2024.500073
2025 | Noriega-Álvarez E, Rodríguez Alfonso B, Rosales Castillo JJ, et al. Role and applications of 18F-FDG PET/CT in the assessment of osteoarticular infection and inflammation – Part II. Rev Esp Med Nucl Imagen Mol. 2025. doi:10.1016/j.remnie.2025.500102
2021 | Rodríguez-Alfonso B, Mitjavila Casanovas M, Castro Urda V, et al. PET/CT with 18F-FDG in suspected intracardiac device-related infections: analysis of performance and diagnostic usefulness. Rev Esp Cardiol. 2021;74(3):238–246. doi:10.1016/j.rec.2020.01.026
2021 | Martínez-López D, Rodríguez Alfonso B, Ramos Martínez A, et al. Are 18F-fluorodeoxyglucose positron emission tomography results reliable in patients with ascending aortic grafts? A prospective study in non-infected patients. Eur J Cardiothorac Surg. 2021;60(1):148–154. doi:10.1093/ejcts/ezab017
2020 | Rodríguez-Alfonso B, Simó-Perdigó M, Orcajo Rincón J. Functional imaging in soft tissue sarcomas: An update on the indications for 18F-FDG-PET/CT. Rev Esp Med Nucl Imagen Mol. 2020;39(4):233–243. doi:10.1016/j.remn.2020.06.001

Areas of special focus

Clinical practice focused on the molecular diagnosis of neurodegenerative, neuro-oncological, cardiovascular, infectious-inflammatory, autoimmune and oncological conditions using nuclear medicine techniques.

  • Neurodegenerative disorders and neuro-oncology.
  • Cardiac and cardiovascular diseases, including infectious and inflammatory conditions.
  • Systemic infectious-inflammatory and autoimmune diseases.
  • Tumours of the musculoskeletal system and of mesenchymal origin.
  • Melanoma and non-melanoma skin tumours.

Techniques and procedures

Application of diagnostic, therapeutic and surgical support techniques specific to nuclear medicine, with a particular focus on PET/CT, SPECT/CT, theragnosis and radioguided surgery.

  • Diagnosis of systemic infectious and inflammatory conditions using PET/CT, with a focus on early diagnosis, differential diagnosis and biopsy guidance.
  • Detection of metabolic patterns of neurodegeneration using PET and SPECT radiopharmaceuticals.
  • Differential diagnosis and monitoring of central nervous system tumours using PET/CT.
  • Theragnosis of neuroendocrine tumours and prostate cancer.
  • Radioguided surgery using SPECT/CT detection and intraoperative localisation.
  • Diagnosis, staging, response assessment and monitoring of oncological conditions using PET/CT.

Accreditations and memberships

He maintains active links with scientific societies and professional bodies in the field of nuclear medicine, including:

  • Member of the Executive Board of the Infection & Inflammation Committee of the European Association of Nuclear Medicine (EANM).
  • Chair of the Musculoskeletal Pathology Working Group of the Spanish Society of Nuclear Medicine and Molecular Imaging (SEMNIM).
  • Secretary of the Madrid Society of Nuclear Medicine (SMMN).

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