Journals / Molecular Imaging and Radionuclide Therapy / 2017 / Cilt: 26 - Sayı: 1

Endometrium Kanserinde Primer Tümöre Ait Minimum Görünen Difüzyon Katsayısı ve Maksimum Standardize Tutulum Değerleri ile Klinikopatolojik Özelliklerin İlişkisi

Correlation of Minimum Apparent Diffusion Coefficient and Maximum Standardized Uptake Value of the Primary Tumor with Clinicopathologic Characteristics in Endometrial Cancer

Pages
24–32
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

However, the routine use of 18F-FDG PET/CT or DW-MRI cannot be recommended at the moment due to less than ideal predictive performances of both parameters.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: To explore the correlation of the primary tumor's maximum standardized uptake value (SUVmax) and minimum apparent diffusion coefficient (ADCmin) with clinicopathologic features, and to determine their predictive power in endometrial cancer (EC).
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Key Findings & Data:Methods: A total of 45 patients who had undergone staging surgery after a preoperative evaluation with 18F-fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) and diffusion-weighted magnetic resonance imaging (DW-MRI) were included in a prospective case-series study with planned data collection.
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Conclusion & Impact:However, the routine use of 18F-FDG PET/CT or DW-MRI cannot be recommended at the moment due to less than ideal predictive performances of both parameters.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: To explore the correlation of the primary tumor's maximum standardized uptake value (SUVmax) and minimum apparent diffusion coefficient (ADCmin) with clinicopathologic features, and to determine their predictive power in endometrial cancer (EC). Methods: A total of 45 patients who had undergone staging surgery after a preoperative evaluation with 18F-fluorodeoxyglucose (FDG) positron emission tomography/computerized tomography (PET/CT) and diffusion-weighted magnetic resonance imaging (DW-MRI) were included in a prospective case-series study with planned data collection. Multiple linear regression analysis was used to determine the correlations between the study variables.Results: The mean ADCmin and SUVmax values were determined as 0.72±0.22 and 16.54±8.73, respectively. A univariate analysis identified age, myometrial invasion (MI) and lymphovascular space involvement (LVSI) as the potential factors associated with ADCmin while it identified age, stage, tumor size, MI, LVSI and number of metastatic lymph nodes as the potential variables correlated to SUVmax. In multivariate analysis, on the other hand, MI was the only significant variable that correlated with ADCmin (p=0.007) and SUVmax (p=0.024). Deep MI was best predicted by an ADCmin cutoff value of <=0.77 [93.7% sensitivity, 48.2% specificity, and 93.0% negative predictive value (NPV)] and SUVmax cutoff value of >20.5 (62.5% sensitivity, 86.2% specificity, and 81.0% NPV); however, the two diagnostic tests were not significantly different (p=0.266).Conclusion: Among clinicopathologic features, only MI was independently correlated with SUVmax and ADCmin. However, the routine use of 18F-FDG PET/CT or DW-MRI cannot be recommended at the moment due to less than ideal predictive performances of both parameters.

Özet

Amaç: Endometrium kanserinde (EK) primer tümörün maksimum standardize tutulum değeri (SUVmaks) ve minimum görünen difüzyon katsayısının (ADCmin) klinikopatolojik özellikler ile olan ilişkisini araştırmak ve bunların öngörü gücünü belirlemektir.Yöntem: 18F-fluorodeoksiglukoz (FDG) pozitron emisyon tomografisi/bilgisayarlı tomografi (PET/BT) ve difüzyon ağırlıklımanyetik rezonans görüntüleme (DA-MRG) ile preoperatif değerlendirmeyi takiben evreleme cerrahisi yapılan toplamda 45 hasta, planlı veri toplama yapılan prospektif bir olgu serisine dahil edildiler. Çalışma verileri arasındaki ilişkiler çoklu doğrusal regresyon analizi ile araştırıldı.Bulgular: Ortalama ADCmin ve SUVmaks sırasıyla 0,72±0,22 ve 16,54±8,73 olarak bulundu. Tek değişkenli analizde yaş, myometriyal invazyon (Mİ) ve lenfovasküler alan tutulumu (LVAT) ADCmin ile ilişkili potansiyel faktörler olarak bulunurken, yaş, evre, tümör büyüklüğü, LVAT ve metastatik lenf düğümlerinin sayısı SUVmaks ile ilişkili potansiyel değişkenler olarak tespit edildiler. Diğer taraftan, çok değişkenli analizde Mİ, ADCmin (p=0,007) ve SUVmaks (p=0,024) ile ilişkili tek anlamlı değişkendi. Derin Mİ en iyi, 20,5'lik (%62,5 duyarlılık, %86,2 özgüllük ve %81,0 NPD) bir SUVmaks kesim değeri ile öngörülebiliyordu. Ne var ki, her iki tanısal test birbirlerinden anlamlı şekilde farklı değildi (p=0,266).Sonuç: Klinikopatolojik özelliklerden yalnızca Mİ bağımsız ve anlamlı şekilde SUVmaks ve ADCmin ile ilişkiliydi. Ne var ki, her iki parametrenin ideal olmayan öngörü performansları nedeniyle 18F-FDG PET/BT veya DA-MRG'nin rutin kullanımı şu noktada önerilemez.

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Cite This Article

BUDAK, E. S., TOPTAŞ, T., AYDIN, F., ÖNER, A. O., ÇEVİKOL, C., ŞİMŞEK, T. (2017). Endometrium Kanserinde Primer Tümöre Ait Minimum Görünen Difüzyon Katsayısı ve Maksimum Standardize Tutulum Değerleri ile Klinikopatolojik Özelliklerin İlişkisi. Molecular Imaging and Radionuclide Therapy, Cilt: 26 - Sayı: 1, 24–32. https://ajindex.com/articles/295093

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