The study aimed to analyze the diagnostic utility of fluoro-deoxy glucose [FDG PET/computed tomography (CT)] in assessing peritoneal deposits and to establish optimal quantitative metabolic thresholds for differentiating malignant from benign involvement, comparing it with conventional CT.

Method:

A total of 202 patients who had been identified with various types of malignant tumors and who were suspected or confirmed to have peritoneal deposits underwent whole-body FDG PET/CT. Qualitative assessment and quantitative metabolic parameters, including standardized uptake value (SUV max, SUV mean, and SUV peak), metabolic tumor volume, and total lesion glycolysis, were evaluated. Results were validated against histopathology or clinical/radiological follow-up. Receiver operating characteristic curve analysis determined the discriminative power and optimal cut-off values.

Result:

FDG PET/CT …