【摘要】 目的　探讨后纵韧带骨化 (OPLL)的MRI表现及MRI对其诊断价值。方法　回顾性分析 36例颈椎OPLL的MRI表现。结果　本组病例OPLL的厚度为 2～ 7mm ,平均 3.9mm。病变范围从单个节段至 4个节段。多发生于C3～ 6 水平。OPLLT1WI 2 4例呈低信号 ,12例为低信号内见等或高信号 ;T2 WI 31例呈低信号 ,5例为低信号内见等信号。OPLL压迫脊髓 2 8例、压迫神经根 4例。 12例脊髓内出现异常信号。结论　MRI是颈椎OPLL最理想的检查方法更多还原

【Abstract】 Objective To evaluate the MRI findings of ossification of the posterior longitudinal ligament(OPLL)in the cervical spine and the role of MRI for diagnosing OPLL.Methods The MRI findings of 36 cases of OPLL in the cervical spine were retrospectively analyzed.Results The range of thickness of OPLL was 2～7 mm,average 3.9 mm.The affected range of OPLL from singal section to four sections.OPLL situated in C 3～6 level mostly.On T 1WI,OPLL exhibited low signal in 24 cases and iso-signal or high signal were seen in 12 cases.On T 2WI,OPLL exhibited low signal in 31 cases and iso-signal were seen in 5 cases.Spinal cord was compressed by OPLL in 28 cases,while 4 cases to nerve roots.There were abnormal MRI signals in spinal cord in 12 cases.Conclusion MRI is the idealest examination for OPLL in the cervical spine更多还原