^(99m)Tc(V)-DMSA骨显像诊断骨转移瘤的临床价值

The Clinical Value of ~99mTc(V)-DMSA Imaging in Detecting Bony Metastases

目的：评价99mTc（V）－DMSA显像在骨转移瘤诊断中的意义。材料和方法：对91例疑骨转移瘤患者行99mTc（V）DMSA全身显像，并与99mTc-MDP全身骨显像及其它检查对比。结果：74例证实存在骨转移瘤者，99mTc．MDP骨显像均显示异常放射性浓聚，99mTc（V）-DMSA显像72例显示了与99mTc-MDP显像某些相同部位的放射性浓聚，2例99mTc（V）DMSA显像阴性。17例骨良性病变，99mTc－MDP骨显像显示轻度异常放射性浓聚，而99mTc（V）-DMSA显像却未见异常的放射性浓聚。结论：99mTc（V）－DMSA诊断骨转移瘤的特异性比99mTc-MDP骨显像高，在骨良恶性肿瘤鉴别诊断中具有重要的临床价值。

Purpose: To assess the clinical value of ~99m Tc.(V)-DMSA imaging in the diagnosis of benign and malignant skeletal lesions.Materials and Methods: 91 patients with suspected bone metastatic lesions were given 99mTc(V)-DMSA and 99mTc-MDP for whole theybone scintigraphy. Results: Seventy-four patients had positive 99mTc-MDP scans with multiple and solitary skeletal involvement, 72/74 99mTo(V)-DMSA scans showed some matched fool of increased radiotracer concentration in bony metastases. However, none of seventeen patiants with benign lesions had 99mTc (V)-DMSA concentration. Conclusion: 99mTc (V)-DMSA scan showed higher specificity for bonemetastases than 99mTc-MDP scintigraphy, and is of clinical valve in distinguishing benign and malignant bone tumors.