MRI对椎体骨折与愈合过程的评价

目的总结与评价MRI对外伤性椎体骨折的诊断和愈合过程的诊断价值。方法回顾性分析62例椎体外伤骨折．共83个椎体．分为压缩性骨折、爆裂性骨折、隐匿性骨折。结果新鲜压缩性骨折T1WI信号，T2WI呈高信号，STIR序列呈高信号：陈旧压缩性骨折T1WI呈高信号，T2WI呈低信号，STIR序列呈低信号；爆裂性骨折T1WI呈高低混杂信号，T2WI呈高信号，STIR序列呈高信号。椎体呈分裂状：隐匿性骨折为T1wI及T2WI对应位置条状低信号，且于T1WI低信号周同见片状高信号，STIR序列呈高信号．结论MRI可以从椎体信号的变化来评价椎体外伤性骨折的程度与康复过程，且能够弥补传统X线与CT诊断椎体骨折的诸多不足之处。

Magnetic resonance imaging applied in the diagnosis and monitoring of the healing procedure of vertebral fractures

Objective To summarize and evaluate the diagnostic significance of magnetic resonance imaging in the traumatic vertebra fractures. Methods Magnetic resonance imaging was performed in 62 patients with 83 vertebra fractnres including compression, blow-out and occult fracture. The MR signal intensity of different fractures was retrospectively reviewed. Results Fresh compression fractnres were hypointense on T1WI and hyperintense on T2WI and STIR, but old compression fractures were hyperintense on T1WI and hypointense on T2WI and STIR. Blow-out fractures were hyperintense mixed with hypointense on T1WI and hyperintense on T2WI and STIR. Occult fractures were hypointense on T1WI, hypointense but surrounding hyperintense on T2WI, and hyperintense on STIR. Conclusion Magnetic resonance imaging can be used as a diagnostic and research tool to evaluate the severity and healing of traumatic vertebra fractures.