摘要
目的探讨动态三维MRI臂丛成像技术在诊断臂丛神经根性损伤的影像学表现与临床应用。方法采用短时反转恢复序列(STIR)技术对10例臂丛神经根性损伤患者行动态三维MRI臂丛成像,所有10例患者均手术证实为臂丛根性损伤。结果本组患者在伤后早期(1～3天)内行三维MRI臂丛成像均未见明显臂丛根性损伤的特征性MRI表现;伤后10～15天(平均10天)后,再次行三维MRI臂丛成像,出现典型的臂丛根性损伤MRI表现:神经根消失或离断、创伤性脊膜囊肿、脊髓偏移等。结论三维MRI臂丛成像可以很好地地显示臂丛神经的解剖结构,通过动态成像可以显示臂丛根性神经损伤短期内动态变化的特征性影像学表现;动态三维MRI具有对臂丛神经根性损伤定位准确、无创、操作简单等优点,有着很高的临床应用价值。
Objective To investigate radiological findings and clinical application of the dynamic 3d-MRI in the diag- nosis of brachial plexus root injuries. Methods 10 cases of brachial plexus root injury patients underwent dynamic three dimensional MRI （3d-MRI） with short TI inversion recovery sequence （STIR）. All cases were confirmed having brachi- al plexus root injuries by intraoperative exploration. Results No characteristic signs of brachial plexus root injuries were found in the early 3d-MRI scanning within one and three days after injurie. At 10-15 days（average 10 clays）after injury. Characteristic signs of brachial plexus root injuries were found in the second 3d-MRI scanning,including absence and abnormal conduction of the nerve roots, traumatic spinal meningocele, displacement of the spinal cord, etc. Conclu- sion Brachial plexus nerve anatomical structure could be displayed well in 3d-MRI,the change in short time and the characteristic radiological findings of brachial plexus root injuries could be found in dynamic 3d-MRI. Dynamic 3d-MRI is a noninvasive and effective imaging method for the diagnosis of brachial plexus root injuries, which could show the ac- curate location of the injured brachial plexus root nerve, has significant value in clinical application.
出处
《中国实验诊断学》
2013年第1期68-71,共4页
Chinese Journal of Laboratory Diagnosis
关键词
臂丛
损伤
磁共振
三维
动态
Brachial plexus
Injuries
Magnetic resonance imaging
Three dimensional
Dynamic
