الفهرس 
Anatomical BackgroundOnly 14 pages are availabe for public view
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Abstract
Background: Early diagnosis of cancer remains to be of paramount importance to maximize a patient’s long-term survival and reduce various neurological, hematological, and orthopedic complications that may arise. Skeletal metastasis (SM) is a frequently encountered and important complication of cancer which can lead to intolerable pain.
Objectives: The goal of the study was to illustrate the value of combined 18F-FDG PET/CT over isolated CT for detection of osseous metastases in cancer patients.
Patients and Methods: The study included 75 patients. 18F-PET/CT scans were performed. In this study, a lesion-based analysis was performed in detailed retrograde manner. Statistical analysis including specificity, Sensitivity, negative predictive value (NPV) and positive predictive value (PPV) of each of these modalities were calculated. A final diagnosis of metastasis was confirmed by biopsy.
Results: Combined PET-CT examination is highly sensitive imaging modality in detection of early bone marrow metastatic lesions which are not yet evident on conventional CT study.
Conclusion: Combined 18-F FDG PET/CT significantly improves the sensitivity and specificity of isolated CT for the detection of osseous and bone marrow metastases. Thus, it adds a significant value that can detect lesions and consequently start a treatment course and improve the overall outcome of the disease process.