老年性骨质疏松脊柱良性骨折与转移瘤性骨折的MRI鉴别

目的探讨脊椎骨质疏松性压缩骨折的MRI表现及其与转移性压缩骨折的鉴别诊断.资料与方法回顾性分析53例老年性骨质疏松伴压缩性骨折和20例转移性椎体压缩骨折患者的MRI资料.全部病例均行常规MRI检查(矢状位、横轴位).分析两者引起的压缩骨折MRI征象,包括椎体和椎弓根的形态及信号改变、椎间盘增厚、椎体内真空现象和椎旁软组织形态.探讨两者之间的差别.结果两者在椎体和椎弓根形态及信号、椎体内真空现象、椎旁软组织形态上存在非常显著性差异(P＜0.01).结论 MRI能准确显示骨质疏松性压缩骨折的形态及信号,与转移瘤之间有显著差异,大多能对二者做出鉴别诊断.

MRI Differentiation of Benign with Metastatic Vertebral Fractures in Senile Patients with Osteoporosis

Objective To evaluate MRI in differentiating benign with metastatic compressed fractures of vertebral body in senile patients with osteoporosis. Materials and Methods MRI findings in 53 senile osteoporosis patients with benign vertebral compressed fracture and in 20 senile osteoporosis patients with metastatic vertebral compressed fracture were retrospectively analyzed. Routine sagittal and axial MRI scanning was performed in all patients. MR signal intensity and the morphologic changes, including the vertebral body and pedicles, the thickness of the intervertebral disc, the presence of vacuum phenomenon in the vertebral body and the paravertebral soft tissue appearance, were observed. The results of the benign group and the metastatic group were compared. Results Significant difference in the above observed items existed between the two groups (P<0.01).Conclusion MRI plays an important role in differentiating benign with metastatic compressed vertebral fractures in senile patients with osteoporosis.