MRI与^(99)Tc^m-MDP骨显像在骨转移瘤诊断中的应用比较

COMPARATIVE STUDY OF MRI AND ^(99)Tc^m-MDP BONE IMAGING IN DIAGNOSIS OF BONE METASTASIS

目的比较MRI与^(99)Tc^m-MDP骨显像在骨转移瘤诊断中的价值。方法对15例骨转移瘤患者分别进行MRI及^(99)Tc^m-MDP骨显像检查,比较2种方法检出骨转移瘤病变的阳性率。结果 15例骨转移瘤中,MRI检查阳性1 5例.阳性病灶95个,^(99)Tc^m-MDP骨显像检查阳性13例,阳性病灶61个,MRI阳性病灶检出率高于^(99)Tc^m-MDP骨显像,差异有统计学意义(x^2=23.684,P<0.01)。结论增强T_1WI及DWI序列的应用。

ObjectiveTo compare the diagnosis of MRI and 99 Tcm-MDP bone imaging in bone metastasis.Methods Fifteen patients of diagnosed bone metastatic tumor underwent MRI and 99 Tcm-MDP bone imaging,the positive rate was compared between the two methods.Results MRI showed positive examination in 15 cases,and a total 95 lesions.^99 Tc^m-MDP bone imaging showed positive examination in 1 3 cases and a total 6 1 lesions.The positive rate of MRI in detection lesions was higher than that of^ 99 Tc^m-MDP bone imaging,the difference had statistical significance（χ^2=23.684,P〈0.01）.Conclusion Post-contrasted T1 WI and DWI made MRI more sensitive than ^99 Tc^m-MDP bone imaging in examination of bone metastasis.MRI and bone scintigraphy are considered as the complementary diagnostic methods in the detection of bone metastasis.