4.7 Article

Predicting the Recurrence of Gastric Cancer Using the Textural Features of Perigastric Adipose Tissue on [18F]FDG PET/CT

期刊

出版社

MDPI
DOI: 10.3390/ijms231911985

关键词

adipose tissue; F-18 fluorodeoxyglucose; positron emission tomography; stomach neoplasm; textural feature

资金

  1. National Research Foundation of Korea (NRF) - Korean government (The Ministry of Science and ICT) [NRF-2022R1C1C1002705]
  2. Soonchunhyang University Research Fund

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This study assessed the relationship between histopathological and textural features of perigastric adipose tissue on PET/CT and found that these features were significant prognostic factors for predicting recurrence-free survival in gastric cancer patients.
This study aimed to assess the relationship between the histopathological and textural features of perigastric adipose tissue (AT) on 2-deoxy-2-[F-18]fluoro-D-glucose ([F-18]FDG) positron emission tomography/computed tomography (PET/CT) and to evaluate the prognostic significance of perigastric AT textural features in predicting recurrence-free survival (RFS) in patients with gastric cancer. Sixty-nine patients with gastric cancer who underwent staging [F-18]FDG PET/CT and subsequent curative surgery were retrospectively reviewed. Textural features of perigastric AT were extracted from PET images. On histopathological analysis, CD4, CD8, and CD163 cell infiltration and matrix metalloproteinase-11 and interleukin-6 (IL-6) expression in perigastric AT were graded. The degree of CD163 cell infiltration in perigastric AT was significantly correlated with the mean standardized uptake value (SUV), SUV histogram entropy, grey-level co-occurrence matrix (GLCM) energy, and GLCM entropy of perigastric AT. The degree of IL-6 expression in the perigastric AT was significantly correlated with the mean and median SUVs of perigastric AT. In multivariate survival analysis, GLCM entropy, GLCM dissimilarity, and GLCM homogeneity of perigastric AT were significant predictors of RFS. The textural features of perigastric AT on [F-18]FDG PET/CT significantly correlated with inflammatory response in perigastric AT and were significant prognostic factors for predicting RFS in patients with gastric cancer.

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