Effects of the changes between pre- and post-treatment 18F-FDG PET-CT volumetric parameters on overall survival in pleural mesothelioma
ONCOLOGY IN CLINICAL PRACTICE(2023)
摘要
Introduction. This study aimed to examine the efficacy of positron emission tomography in fusion with computed tomography (PET-CT) parameters in predicting survival outcomes for patients with malignant pleural mesothelioma.Material and methods. This study retrospectively evaluated the data of 250 patients who were followed up after a diagnosis of malignant pleural mesothelioma. The relationship of pre-treatment [maximum standardized uptake value (SUVmax1), metabolic tumor volume (MTV1), total lesion glycolysis (TLG1), tumor/background (TBR1), pleural thickness1), post-treatment (SUVmax2, MTV2, TLG2, TBR2, pleural thickness2], and APET-CT parameters with survival was retrospectively evaluated in 36 patients whose pre-and post-treatment CT scan examinations were complete.Results. The median age of the patients was 57.5 years, ranging from 35 to 76. Median follow-up time was 16 months, with a range of 7 to 42 months. Median survival was calculated as 18.8 months for all patients. Based on the determined cut-off values, overall survival was determined as 29.9 months in patients with TLG2 <= 158 compared to 16 months in patients with TLG2 > 158 (p = 0.009) and as 30.9 months in patients with ATLG <= -62.58 compared to 16 months in patients with ATLG > -62.58 (p = 0.001). In addition, median overall survival (OS) was determined as 29.9 months in patients with MTV2 <= 63.9 compared to 16 months in patients with MTV2 > 63.9 (p = 0.007) and as 29.9 months in patients with AMTV <=-54.03 compared to 16 months in patients with AMTV > -54.03 (p = 0.002). When evaluated with respect to TBR2; median OS was 29.9 months in patients with TBR2 <= 1.84 compared to 16 months in patients with TBR2 > 1.84 (p = 0.039).Conclusions. Our research findings indicate a correlation between OS and volumetric PET-CT measures, specifically TLG and MTV.
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关键词
mesothelioma, 18F-FDG PET-CT, volumetric parameters
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