Terae S, Taneichi H, Abumi K
Department of Radiology, Kushiro Rosai Hospital, Kushiro City, Japan.
J Comput Assist Tomogr. 1993 Sep-Oct;17(5):700-3. doi: 10.1097/00004728-199309000-00006.
We assessed the MR appearance of wallerian degeneration following spinal cord injury.
We retrospectively reviewed the MR examinations of 13 patients with spinal cord injury. Thirty-one MR examinations were performed at various time intervals (1 day to 4 years) following injury.
High signal intensity was observed in six patients (11 examinations) at the level of the posterior columns cephalad to the primary injury site on T2-weighted and proton density-weighted imaging at 10 week to 12 month intervals postinjury. In these six patients the posterior column was involved at the primary injury site.
The abnormal intensity cephalad to the injury site is thought to represent wallerian degeneration, which should be considered in the differential diagnoses of spinal intramedullary lesions.
我们评估了脊髓损伤后华勒氏变性的磁共振成像表现。
我们回顾性分析了13例脊髓损伤患者的磁共振检查。在损伤后的不同时间间隔（1天至4年）进行了31次磁共振检查。
6例患者（11次检查）在损伤后10周-12个月的T2加权和质子密度加权成像上，在原发损伤部位头侧的后柱水平观察到高信号强度。在这6例患者中，后柱在原发损伤部位受累。
损伤部位头侧的异常信号强度被认为代表华勒氏变性，在脊髓髓内病变的鉴别诊断中应予以考虑。
