Images will be analyzed by at least two physicians with extensive experience in nuclear medicine and radiological diagnostics. Regions of interest (ROIs) will be delineated for the lesion tissues to measure volume and SUV values. The interpreted PET/CT imaging results will be compared to the corresponding histopathological results of the lesions (obtained through biopsy or surgery) and will be used as the reference standard. We will employ McNemar's test to compare the sensitivity, specificity, accuracy, positive predictive value, and negative predictive value of targeted CAIX PET/CT imaging and enhanced CT in primary tumors, metastatic lymph nodes, and distant metastatic lesions.
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