椎体缺血性压缩病的综合影像学诊断

Synthetic imaging diagnosis of kummell disease

目的分析椎体缺血性压缩病的影像学特征,以提高椎体缺血性压缩的影像诊断水平。方法对7例椎体缺血性压缩骨折的X线、CT、MRI特征进行分析,并与其它明确病因的非缺血性压缩的影像学特点进行对照。结果 7例患者均行X线、CT检查,显示椎体内横向真空裂隙征7个,其中5例还行MRI检查,内部可显示积气或积液征4例。摄X线过伸或过屈位2例,均显示裂隙宽度的变化,呈"狮子大张口状"。非缺血性压缩者无1例显示椎体内真空裂隙征,MRI检查也未见积液征。结论椎体内空泡裂隙征和MRI检查出现积液征,是椎体缺血性压缩骨折的特征性表现,具有重要的诊断价值,综合影像学检查有助于提高本病的诊断率。

Objective To demonstrate the imaging features of a vascular necrosis of the vertebral body and to improve the understanding of this disease and clinic diagnosis. Methods 7 ANV patients were retrospectively analyzed by the X - ray, CT scan and MRI and make differential diagnosis with NON - avascular necrosis of the vertebral body causing by other reason. The imaging feature of ANV were demonstrated and summarized the diagnostic points. Results 7 cases were undergone CT scan and X - ray. All of cases were demonstrated the transverse vacuum broken sign. Among them,5 cases were undergone MRI and 4 cases demonstrated gas or fluid like sign. 2 cases were undergone excessive stretch-posture photograph and demonstrate the width change in broken sign,it showed wildly opened mouth. No cases with NON - ANV showed the transverse vacuum broken sign and fluid like sign. Conclusion transverse vacuum broken sign and fluid like sign is characteristic sign in ANV. Synthetic diagnosis based on X -ray, CT scan and MRI has value on diagnosis.