摘要
目的 探讨低场磁共振脊柱单发性转移瘤的MRI表现及诊断价值。方法 回顾性分析18例单发性脊柱转移瘤的MR表现。结果 单发性脊柱转移瘤的MR表现为:94 .4 % (17/ 18)的椎体在T1 WI表现为低信号,5 .6 % (1/ 18)表现为混杂信号;83.3% (15 / 18)椎体在T2 WI表现为高低不等的混杂信号,其余均显示为高信号;单个椎体破坏时多伴有椎体附件受累,椎旁软组织形成,但相邻椎间盘仍然保持完整;伴有椎体压缩性骨折的病灶表现为“上下内凹”的盘状,而非典型的楔状变。结论 低场磁共振是诊断脊柱单发性转移瘤可靠的手段。
Objective To explore the MRI diagnostic value of low field MR for single spinal metastasis.Methods The MR data of 18 cases with spinal metastasis were analyzed retrospectively.Results The thoracic and lumbar spine were involved most by lesions. 17 cases(94.4%) were hypointensity and 1 case(5.6%) was heterogeneous intensity on T 1WI,15 cases(83.3%) were heterogeneous intensity on T 2WI.The centrum accessory may be invasive,the masses of paravertebral soft tissue may occur,whereas the interverbral disc may keep the integrity.Those lesions complicated with vertebral compression fracture may show as “discoid shape”,not typical “wedgeshape”.Conclusions Low field MR is a reliable method in the diagnosis of single spinal metastasis.
出处
《东南国防医药》
2005年第2期92-93,132,共3页
Military Medical Journal of Southeast China
