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  • Title: The role of 18F-fluoride PET-CT in the detection of bone metastases in patients with breast, lung and prostate carcinoma: a comparison with FDG PET/CT and 99mTc-MDP bone scan.
    Author: Damle NA, Bal C, Bandopadhyaya GP, Kumar L, Kumar P, Malhotra A, Lata S.
    Journal: Jpn J Radiol; 2013 Apr; 31(4):262-9. PubMed ID: 23377765.
    Abstract:
    OBJECTIVES: We aimed to compare the role of (18)F-fluoride PET/CT, FDG PET/CT and (99m)Tc-MDP bone scans in the detection of bone metastases in patients with lung, breast and prostate carcinoma. METHODS: This was a prospective study including patients for staging (S) and restaging (R). Seventy-two patients (23S, 49R) with infiltrating ductal breast carcinoma, 49 patients (25S, 24R) with prostate adenocarcinoma and 30 patients (17S, 13R) with non-small-cell lung carcinoma (NSCLC), without known bone metastases but with high risk/clinical suspicion for the same, underwent a (99m)Tc-MDP bone scan, FDG PET/CT and (18)F-fluoride PET/CT within 2 weeks. All scans were reviewed by two experienced nuclear medicine physicians, and the findings were correlated with MRI/thin-slice CT/skeletal survey. Histological verification was done wherever feasible. RESULTS: Sensitivity and negative predictive value (NPV) of (18)F-fluoride PET/CT was 100 % in all three malignancies, while that of FDG PET/CT was 79 % and 73 % in NSCLC, 73 % and 80 % in breast cancer and 72 and 65 % in prostate cancer. Specificity and positive predictive value (PPV) of FDG PET/CT were 100 % in NSCLC and prostate and 97 % and 96 % in breast cancer. As compared to the (99m)Tc-MDP bone scan, all parameters were superior for (18)F-fluoride PET/CT in prostate and breast cancer, but sensitivity and NPV were equal in NSCLC. The MDP bone scan had superior sensitivity and NPV compared to FDG PET/CT but had low specificity and PPV. CONCLUSION: To rule out bone metastases in cases where there is a high index of suspicion, (18)F-fluoride PET/CT is the most reliable investigation. (18)F-fluoride PET/CT has the potential to replace the (99m)Tc-MDP bone scan for the detection of bone metastases.
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