Abstract
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Purpose: To evaluate diagnostic value of PET/CT in the Spinal Single Metastatic tumor.Material Methods:Retrospective analysis of 79 patients with a history of malignant tumor and the local CT and(or) MRI examination revealed a single vertebral body lesions, which were suspected with vertebral metastases. All patients were examined with PET/CT. Single spine lesions were confirmed by pathology or more than six months imaging and clinical follow-up as the final diagnosis. All cases, 65 cases with final diagnosis of spinal metastases. The PET/CT fusion image were compared with pure PET, CT and MRI images. Analyze the effectiveness and advantage of PET/CT in the diagnosis of spinal single metastases. Results:The sensitivity, specificity and accuracy of PET/CT in the diagnosis of spinal single metastases were 95.3%(62/65),78.6%(11/14)and 92.4%(73/79) (P<0.05) respectively. The sensitivity and accuracy differences were statistically significant compared with PET. The sensitivity, specificity and accuracy differences were statistically significant compared with CT. The accuracy difference were statistically significant compared with MR. Conclusion:PET/CT with high diagnostic value in diagnosis of spinal single metastatic tumor. PET/CT have the advantage compared with pure PET, CT and MRI . When the diagnosis of spinal single metastases have difficulty, we can improve the diagnosis accuracy by PET/CT.