目的 应用多层螺旋CT(Multislice CT, MSCT)多期扫描对肺癌多发 骨转移的诊断价值应用价值研究。方 法 分别从MSCT平扫、增强扫描分析肺 窗、纵隔窗和骨窗对肺癌的显示诊断以 及骨窗对多发转移瘤的显示优势。结 果 CT影像结果对转移病灶检出准确率为 92.6%(101/109)，椎体转移38(37.6%) 个，肋骨等附件转移23(22.8%)个，股骨 转移18(17.8%)个，肩胛骨16(13.8%)个， 其他转移6(5.9%)个；CT平扫和多期增强 能对肺癌多轴位的进行观察，对骨转移病 灶特异性高。结论 MSCT多期扫描能从任 意轴位观察到肺癌的进展情况和骨转移的 具体位置以及数量，清晰显示了病灶与周 围脏器的关系，指导临床及时制定合适的 治疗方案。

Objective To study the diagnostic value of spiral Multi-phase CT scanning on the multiple bone metastases of lung cancer. Methods The displaying advantages of lung window and mediastinal window of CT enhanced and plain scan in lung cancer and bone window in multiple metastasis were respectively analyzed. Results The detection accuracy rate of CT to metastatic lesions is 92.6% (101/109), which vertebral metastasis is 38 (37.6%), the ribs and other accessories is 23 (22.8%), the femur is 18 (17.8%), the shoulder blade is 16 (13.8%), the others is 6 (5.9%). The CT scan and multi-phase enhanced can show the lung cancer in Multi-axial view and have a high specificity in bone metastases lesions. Conclusion MSCT multi-phase scanning can show the progress of lung cancer, the location and number of the bone metastases from any axis, including the relationship between the lesion and the surrounding organs. It is useful for the clinician to make appropriate treatment options timely.