Nakamura T, Yabe Y, Horiuchi Y, Takayama S
Keio University, Tokyo, Japan.
J Bone Joint Surg Br. 1997 Sep;79(5):764-9. doi: 10.1302/0301-620x.79b5.7679.
We used magnetic resonance (MR) myelography in ten patients with injuries to the brachial plexus and compared the findings with those obtained by conventional myelography and postmyelographic CT (CTM). In the presence of complete nerve-root avulsion (seven cases), a post-traumatic meningocele was detected by MR myelography. In injuries to the upper roots (three cases) MR myelography showed abnormal findings with a high signal intensity in the nerve root, obliteration of the damaged nerve root, or enlargement and obliteration of the root sleeve. No pseudomeningoceles were detected in these upper-root injuries by MR myelography and CTM. The overall accuracy of detection of damaged nerve roots or root sleeves was better with MR myelography than with conventional myelography and was similar to that of CTM. MR myelography is non-invasive, relatively quick, requires no contrast medium, provides imaging in multiple projections, and is comparable in diagnostic ability to the more invasive, time-consuming techniques of conventional myelography and CTM.
我们对10例臂丛神经损伤患者进行了磁共振（MR）脊髓造影，并将结果与传统脊髓造影及脊髓造影后CT（CTM）的结果进行了比较。在完全神经根撕脱的情况下（7例），MR脊髓造影检测到创伤后脑脊膜膨出。在上神经根损伤（3例）中，MR脊髓造影显示神经根呈高信号强度、受损神经根闭塞或神经根袖扩大及闭塞等异常表现。在这些上神经根损伤中，MR脊髓造影和CTM均未检测到假性脑脊膜膨出。MR脊髓造影检测受损神经根或神经根袖的总体准确性优于传统脊髓造影，与CTM相似。MR脊髓造影是非侵入性的，相对快速，无需使用造影剂，可提供多个投影的成像，其诊断能力与传统脊髓造影和CTM等侵入性更强、耗时更长的技术相当。
