摘要
目的 :比较核素骨显像与MRI对脊柱转移瘤的诊断价值。方法 :对 76例经病理证实为恶性肿瘤的患者进行骨显像与MRI检查 ,比较骨显像与MRI对脊柱部位病变的检查情况。结果 :骨显像、MRI对脊柱转移瘤的阳性病例及阳性病灶数的检出率接近 ,阳性病例检出率为 68/81和 61/81,阳性病灶检出率为 167/5 3 6和 15 6/5 3 6。二者均发现胸椎转移为好发段 ,MRI对胸椎病灶的检出率优于骨显像 ,检出率分别为 83 /2 3 7和 64 /2 3 7;二者对腰椎的检出率无差别 ,骨显像对颈椎、骶椎的检出率优于MRI(颈椎分别为 15 /63和 6/63 ,骶椎分别为 2 3 /78和 10 /78)。对多发病灶的检出MRI优于骨显像 ,检出率分别为 14 3 /2 3 7和 116/2 3 7。结论 :在显示脊柱肿瘤骨转移方面 ,总体的敏感性二者接近 ,在具体部位二者各有优势 ,在多发病灶上MRI优于骨显像。骨显像因其简单易行 ,仍为肿瘤患者病情初始评价的选择 ,在其对临床问题解释不够充分时 ,则应采用MRI作为补充 .
Objective:To compare the diagnostic value of bone scintigraphy and MRI in the detection of vertebral metastases.Method:Bone scintigraphy and MRI were performed in 76 patients with malignant tumor confirmed by pathology.The detectability for vertebral metastases was compared between the two modalities.Results:Among the 76 patients,bone scintigraphy was close to MRI in the detection of the vertebral metastases.The number of positive cases shown by scintigraphy and MRI was 68/81 and 61/81 retrospectively,and the number of positive metastatic foci was 167/536 and 156/536 respectively.Both methods revealed that the lesions were most commonly located in thoracic spine.MRI was superior to bone scintigraphy in the detection of thoracic metastases (83/237 and 64/237 respectively, P <0.05).There was no difference between bone scintigraphy and MRI in detection of lumbar metastases.However,Bone scintigraphy was better than MRI in the detection of cervical and sacrum metastases (15/63 and 6/63,23/78 and 10/78,respectively, P <0.05).MRI was better than bone scintigraphy in detecting multiple metastatic foci (143/237 and 116/237,respectively, P <0.05).Conclusion:The sensitivity of bone scintigraphy was similar to that of MRI in detecting vertebral metastasis.Bone scintigraphy may still be considered the method of choice for initial evaluation of suspected metastasis.MRI can be as a supplement technique when bone scintigraphy findings are not enough for answering clinical questions.
出处
《放射学实践》
2002年第5期428-430,共3页
Radiologic Practice
