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目的：比较放射性核素骨显像（简称骨显像）与ＭＲＩ对脊柱骨转移癌灶的检出情况。方法：对４６例病理证实为恶性肿瘤的患者行骨显像与ＭＲＩ检查（两种检查间隔时间不超过２周内），凡ＭＲＩ的Ｔ１加权像表现为低信号强度且Ｔ２加权像表现为高低混杂或高信号强度和／或骨骼显像表现为明显的放射性聚集和／或Ｘ线平片或ＣＴ显示骨质破坏的椎体均认为是肿瘤骨转移。结果：①骨显像、ＭＲＩ对脊柱骨转移癌的检查出率接近（Ｐ＞０５）；②骨显像对脊柱骨转移癌检出的椎体数高于ＭＲＩ（Ｐ＜０００１）；③肿瘤脊柱转移以胸椎、腰椎多发；④骨显像单发病灶有一定的假阳性（３／５），ＭＲＩ单发病灶假阳性少（０／９），但ＭＲＩ显示单发病灶的部分病例（４／９）经骨显像证实为多发病灶。结论：骨显像较ＭＲＩ能更有效地检出脊柱骨转移癌灶，是早期诊断脊柱转移癌的首选方法。
Objective: To compare the detection of radionuclide bone imaging (referred to as bone imaging) and MRI on the metastatic foci of spinal bone. Methods: Forty-six patients with pathologically confirmed malignant tumors underwent bone imaging and MRI examinations (the intervals between the two examinations did not exceed 2 weeks). Where T1-weighted MRI showed low signal intensity and T2-weighted image showed high and low Vertebrae with promiscuous or high signal intensity and / or bone imaging manifesting significant radioactive aggregation and / or plain radiographs or CTs showing bone destruction are all considered tumor bone metastases. Results: (1) The detection rates of bone imaging and MRI on spine metastasis were close (P> 05); ② The number of vertebral bodies detected by bone imaging was higher than MRI (P <0001) ); Tumor spine metastasis to the thoracic and lumbar multiple; ④ bone imaging single lesions have a certain degree of false positive (3/5), MRI single lesions false positive few (0/9), but MRI showed single lesions In some cases (4/9) confirmed by bone imaging multiple lesions. Conclusion: Bone imaging is more effective than MRI in the detection of spinal metastases, which is the first choice for the diagnosis of spinal metastases.