MRI与同位素骨扫描对骨转移瘤诊断价值的比较  

Comparison of MRI Imaging and Radionuclide Bone Scans in Detecting Spinal and Pelvic Metastases

作　　者：蒋学祥[1,2] 王加强 王继琛[1,2] 王霄英 林景辉[1,2] 

机构地区：[1]北京医科大学第一医院医学影像科 [2]北京顺义县南法信医院

出　　处：《实用放射学杂志》1999年第3期130-131,共2页Journal of Practical Radiology

摘　　要：目的：比较ＭＲＩ和同位素骨扫描对骨转移瘤的诊断价值。方法：对６４例同时进行了ＭＲＩ和同位素骨扫描检查并确诊为骨转移瘤的病例，以ＭＲＩ扫描野内脊柱和骨盆骨为观察目标，比较ＭＲＩ与同位素骨扫描对该部位病变的显示情况。结果：６４例患者，ＭＲＩ共检查了７３个部位（骨盆３０，腰椎１９，胸椎１６，颈椎８），在ＭＲＩ扫描范围内，以病灶数为统计单位，确诊为骨转移瘤的共２０１个病灶。在ＭＲＩ上，真阳性１９８个，假阴性３个，无假阳性，其诊断敏感性为９８．５％。在同位素骨扫描，真阳性１５４个，假阴性４７个，假阳性４８个，其诊断敏感性为７６．６％。结论：在显示骨转移瘤方面，ＭＲＩ较同位素骨扫描具有更高的敏感性，但受到扫描范围的限制。Objective:To compare the diagnostic value of MRI and bone scintigraphy in bone metastases.Methods:MRI and bone scintigraphy were obtained simultaneously in 64 patients proved to have bone metastases.The spinal and pelvic bones which were in the scan field of MRI were observed to compare the demonstration of the lesions using MRI and bone scintigraphy.Results:In all the 64 patients,73 locations were examined by MRI(pelvis 30,lumbar spine 19,thoracic spine 16,cervical spine 8).There were 201 lesions which were proved to be metastatic in the scan field of MRI.Quantitative analysis of the lesions in MRI showed that the true positive was 198,the false-negative was 3,the false-positive was 0;and the diagnostic sensitivity was 98.5%(198/201).As regared to the bone scintigraphy,the true-positive was 154,the false-negative was 47,the false-positive was 48;and the diagnostic sensitivity was 76.6%(154/201).Conclusion:In the evaluation of bone metastasis,MRI appears to be more sensitive than bone scintigraphy.Howerver,the abvantages may be confined by the limited scan field of MRI.

关 键 词：骨转移瘤 NMR 成像 放射性同位素 

分 类 号：R738.104[医药卫生—肿瘤]