Objective: To explore features of 131I-WBS and 99Tcm-MIBI-WBS of the post- therapeutic differentiated thyroid carcinoma(DTC), and to discover the relationship between the results of the laboratory tests and DTC metastases for early detection of clinical of DTC metastases. Methods: 131I-WBS of 142 cases receiving more than two 131I therapies and 99Tcm-MIBI-WBS of 32 cases were analyzed. Features of 131I-WBS and 99mTc-MIBI-WBS and results of laboratory serum determinations were summarized. Results: The sensitivity of detection for 131I-WBS was 85.1%, for 99Tcm-MIBI-WBS 80%, and for combined imaging 100%. The specificity for 131I-WBS was 84.2%, for 99Tcm-MIBI-WBS 95.5%, and for combined imaging 86.4%. The positive predictive value (PPV) for 131I-WBS was 72.7%, for 99Tcm-MIBI-WBS 88.9%, and for combined imaging 76.9%. The negative predictive value (NPV) for 131I-WBS was 92%, for 99mTc-MIBI-WBS 91.3%, and for combined imaging 100%. Serum Tg determinations can be used to diagnose DTC metastases. Conclusion: Combined 131I-WBS and 99Tcm-MIBI-WBS are superior to any mono-imaging method, and it can enhance the diagnosis rate of DTC metastases. Results of serum Tg determination could evaluate DTC metastase conditions, which may influence the result of 131I-WBS.
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作者简介 季艳会(1988-),女,硕士在读,研究方向:影像医学与核医学;
通信作者:谭建,E-mail:tanpost@163.cm。