目的：探讨９９ｍ锝－ＭＤＰ全身骨显像对肺癌骨转移的诊断价值。方法：对３０例经病理证实的原发性肺癌患者行９９ｍ锝－ＭＤＰ全身骨显像检查。结果：３０例患者中全身骨显像阳性为２６例，占８７％，而同期Ｘ线检查确诊骨转移者仅６例，占２０％。结论：本法可以发现肺癌的早期骨转移 Objective: To investigate the diagnostic value of 99m Tc-MDP whole body bone imaging in diagnosis of bone metastasis of lung cancer. Methods: Thirty patients with pathologically confirmed primary lung cancer underwent 99m Tc-MDP whole body bone imaging. Results: In 30 patients, bone imaging was positive in 26 cases (87%), while in the same period only 6 cases of bone metastases were confirmed by X-ray examination, accounting for 20%. Conclusion: This method can detect early bone metastases of lung cancer