Scatliff J H, Till K, Hoare R D
Radiology. 1975 Aug;116(02):349-54. doi: 10.1148/116.2.349.
Six cases of possible diastematomyelia studied by air myelography with tomography were thought to involve fibrous or bony septa, but in each case no septum was found. Surgical findings included prominent midline posterior fissures in the cord associated with fibrous bands, an unusual tentlike extension of the arachnoid over the spinal cord, and hemicords with no intervening septum. Recognition of an osseous septum on the plain film does not necessarily mean that the cord is completely divided by bone, as other structures derived from the mesoderm, such as fat or cartilage, may contribute to the septum. The importance of defining tethering of the cord posteriorly at the septum or conus level is stressed. Air myelography with appropriate projections appears to show posterior fixation of the cord to best advantage.
通过空气脊髓造影断层摄影术研究的6例可能的脊髓纵裂病例，最初认为存在纤维性或骨性间隔，但在每例中均未发现间隔。手术发现包括脊髓中线上的明显后裂，伴有纤维带，蛛网膜在脊髓上有异常的帐篷状延伸，以及没有中间间隔的半脊髓。平片上识别出骨性间隔并不一定意味着脊髓被骨完全分隔，因为其他从中胚层衍生的结构，如脂肪或软骨，可能构成间隔。强调了在间隔或圆锥水平确定脊髓后部束缚的重要性。采用适当投照的空气脊髓造影似乎能最清楚地显示脊髓的后部固定情况。
