附件骨MRI表现在脊椎骨髓瘤、转移瘤鉴别中的价值

目的探讨附件骨MRI表现在脊椎骨髓瘤、转移瘤鉴别中的价值。方法分析侵及附件骨的脊椎骨髓瘤、转移瘤各32例,包括病变的数目、部位、形态、大小、分布范围、纵向弛豫时间以及椎弓根、椎板截面直径等方面。结果32例脊椎骨髓瘤中,双侧附件破坏21例,单侧破坏11例,共检出病灶89个。形态呈团状、结节状者39个,呈斑片状28个,既有团状,又有斑片状者12个。受侵椎弓根、椎板、棘突与上一个相邻正常脊椎相比,其比值介于1.048~2.135之间。骨髓瘤与转移瘤侵及附件骨的数目、形态、分布特征有显著差异(P<0.001),椎弓根、椎板截面直径比有差异(P<0.05)。结论脊椎骨髓瘤、转移瘤附件骨MRI表现的差异性,有助于二者鉴别。

The Value of Findings of MRI Appendixes Bone in Differentiating Vertebral Myeloma from Metastatic Tumor

Objective To explore the value of MRI features of the appendixes bone in differentiating vertebral myeloma from metastatic tumor. Methods There were vertebral myelomas and metastatic tumors in 32 cases respectively involved the appendixes bones,the number,positions,forms,size,distribution ranger and T_1 of the lesions,the vertebral pedicles and the diameters of the cross sections of vertebrallaminas were analysed.Results Among the 32 cases of vertebral myeloma,the destruction of appendixe was bilateral in 21 cases andunilateral in 11 cases.Totally 89 lesions were checked out ,of them,the lesions were the form of mass or nodule in 39,patch in 28,mixed form in 12.In compared with its adjacent and normal one,the ratio of evary invaded vertebral pedide , vertebral lamina and spinous process was between 1.048~2.135 . There was significant difference (P<0.001)in the numbers,form and the features of distribution of lesions both myeloma and metastasis.But there was no remarkable difference in T_1 value,and the ratio of diameter of section of vertebral arc and vertebral laminas was of difference(P>0.05).Conclusion The difference of MRI features of the appendixes bone invaded by vertebral myeloma and by metastatic tumor is helpful in distinguishing vertebral myeloma from metastatic tumor.