¹⁸F-FDG PET/CT in the Assessment of Suspected Mitral Prosthetic Valve Endocarditis

Authors

DOI:

https://doi.org/10.59667/sjoranm.v24i1.20

Keywords:

FDG-PET/CT, Prosthetic valve endocarditis, Infective endocarditis, Mitral valve prosthesis

Abstract

A 54-year-old woman with a mechanical mitral valve prosthesis presented with fever and tachycardia. Four pairs of blood cultures were positive for Escherichia coli. Echocardiography showed prosthetic obstruction and a mobile echogenic structure. The differential diagnosis included prosthetic valve endocarditis and prosthetic thrombosis. ¹⁸F-FDG PET/CT showed focal uptake in the prosthetic and periprosthetic region (SUVmax 2.6). Together with the clinical, microbiological and echocardiographic findings, this supported the diagnosis of prosthetic valve endocarditis. The case illustrates the contribution of PET/CT when echocardiography leaves the cause of prosthetic valve dysfunction uncertain.

Author Biographies

  • Zakaria Ouassafrar, Nuclear Medicine Department, Ibn Rochd University Hospital Center, Casablanca, Morocco

    Professeur assisstant (Service de médecine nucléaire)

  • Abdel Amide Gbadamassi, Nuclear Medicine Department, Ibn Rochd University Hospital Center, Casablanca, Morocco

    MD | Nuclear Medicine Resident | MSc in Medical Biophysics | Project Management and Monitoring & Evaluation Administrator

  • Amal Guensi, Nuclear Medicine Department, Ibn Rochd University Hospital Center, Casablanca, Morocco

    Head of the Nuclear Medicine Department at CHU Ibn Rochd (Nuclear Medicine Department, Ibn Rochd University Hospital Center) in Casablanca, and affiliated with Hassan II University / Faculty of Medicine and Pharmacy of Casablanca (FMPC)

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SJORANM article cover, Vol. 24 No. 1 (2025). Holographic symbolic illustration for article 85.

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Published

2025-10-31

Issue

Vol. 24 No. 1 (2025)

Section

Case reports

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Copyright (c) 2025 Zakaria Ouassafrar, Abdel Amide Gbadamassi, Halima Batani, Hafsa Bensimimoun, Amal Guensi

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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How to Cite

Ouassafrar, Z., Gbadamassi, A. A., Batani, H., Bensimimoun, H., & Guensi, A. (2025). ¹⁸F-FDG PET/CT in the Assessment of Suspected Mitral Prosthetic Valve Endocarditis. Swiss Journal of Radiology and Nuclear Medicine, 24(1), 23-26. https://doi.org/10.59667/sjoranm.v24i1.20

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