Journals / Molecular Imaging and Radionuclide Therapy / 2017 / Cilt: 26 - Sayı: 2

18F-FDG-PET/CT in Initiation and Progression of Inflammation and Infection

Enfeksiyon ve Enflamasyonun Oluşum ve Gelişim Sürecinin 18F-FDG-PET/BT Kullanılarak İzlenmesi

Pages
47–52
DOI
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Conclusion: The results demonstrated that the SUVmax value for 18F-FDG can be useful in the early differentiation of sterile and infected abscess.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Detection/localization of infection and inflammation is important for the initiation of correct treatment as well as its maintenance.
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Key Findings & Data:Nuclear medicine imaging methods play an important role in determining infection and inflammation. 18F-2’-deoxy-2-fluoro-d-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) is highly sensitive in such cases when used with tomographic cross-sections.
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Conclusion & Impact:Conclusion: The results demonstrated that the SUVmax value for 18F-FDG can be useful in the early differentiation of sterile and infected abscess.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Detection/localization of infection and inflammation is important for the initiation of correct treatment as well as its maintenance. Nuclear medicine imaging methods play an important role in determining infection and inflammation. 18F-2’-deoxy-2-fluoro-d-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) is highly sensitive in such cases when used with tomographic cross-sections. In this study, the development and progression of infection and inflammation were monitored on rats by using 18F-FDG via PET/CT. Methods: Sterile and infected abscesses were formed on rats using turpentine and S. aureus, respectively. For evaluation of the formation and progression of the abscess, 18F-FDG was injected into the rats and they were imaged by PET/CT at intervals of twenty-four hours for five days. Maximum standard uptake value (SUVmax) of 18F-FDG was calculated. Results: The highest activity involvement was seen on the first day of abscess formation. On the first day, SUVmax of the S. aureus abscess was 3.9±0.9 while in the sterile abscess SUVmax in the first day was 2.2±0.8. 18F-FDG uptake decreased day by day and it reached the background level on the fourth and fifth days. There were statistically significant differences between S. aureus and sterile abscess, and between sterile abscess and background activity in terms of SUVmax values during the first three days (p 0.05). Conclusion: The results demonstrated that the SUVmax value for 18F-FDG can be useful in the early differentiation of sterile and infected abscess. In addition, 18F-FDG-PET imaging has the advantage of local availability of equipment and labeled agents leading rapid diagnosis of differentiation of infection and inflammation.

Özet

Yöntem: Terebentin ve S. aureus kullanılarak ratlarda steril ve enfekte apse oluşturuldu. Apsenin oluşum ve gelişim sürecini değerlendirmek için ratlar 24 saatlik aralar ile 5 gün 18F-FDG enjekte edilerek PET/BT ile görüntülendi. 18F-FDG'nin maksimum standart uptake değeri (SUVmaks) hesaplandı. Bulgular: En yüksek aktivite tutulumu apse oluşumunun ilk gününde görüldü. İlk gün S. aureus için SUVmaks 3,9±0,9 iken steril apse için SUVmaks 2,2±0,8 idi. 18F-FDG tutulumu günden güne azalırken dördüncü ve beşinci günlerde zemin aktivite düzeyi kadar azaldı. S. aureus ile steril apse arasında ve steril apse ile background aktivite arasında SUVmaks değerleri açısından ilk üç gün görüntülerde istatistiksel olarak anlamlı fark vardı (p 0,05). Sonuç: Bu sonuçlar 18F-FDG SUVmaks değerlerinin erken dönemde steril ve enfekte apse arasındaki ayrım için yararlı olabileceğini öne sürmektedir. Ayrıca ekipmanların ve işaretli ajanların lokal olarak temin edilmesi enfeksiyon enflamasyon ayrımında 18F-FDG-PET görüntüleme yönteminin hızlı tanı yöntemi olmasını sağlar.

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Cite This Article

ERTAY, T., EREN, M. Ş., KARAMAN, M., OKTAY, G., DURAK, H. (2017). 18F-FDG-PET/CT in Initiation and Progression of Inflammation and Infection. Molecular Imaging and Radionuclide Therapy, Cilt: 26 - Sayı: 2, 47–52. https://ajindex.com/articles/295087

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