Wang A M, Jolesz F, Rumbaugh C L, Zamani A
J Comput Assist Tomogr. 1983 Feb;7(1):18-24. doi: 10.1097/00004728-198302000-00004.
Computed tomographic (CT) myelography, when used with metrizamide, permits a reliable demonstration of syringohydromyelic cavities in the cervical spinal cord. We report 6 cases of cervical syrinx demonstrated by high-resolution CT 4 h after metrizamide myelography; these cavities, which were not suspected clinically, extended into the thoracic cord. In addition 4 cases were associated with Chiari Type 1 malformation and 1 case was associated with both Chiari Type 1 malformation and infratentorial arachnoid cyst. We recommend that CT evaluation of cervical syringohydromyelia routinely include the thoracic spine, in order to demonstrate possible thoracic extension of the cavity. Scans of the foramen magnum are also recommended, because of the possibility of concomitant lesions, especially Chiari Type 1 malformation.
计算机断层脊髓造影（CT脊髓造影）在使用甲泛葡胺时，能够可靠地显示颈髓内的脊髓空洞症腔隙。我们报告了6例在甲泛葡胺脊髓造影后4小时通过高分辨率CT显示的颈髓空洞症病例；这些临床上未被怀疑的空洞延伸至胸髓。此外，4例与Chiari Ⅰ型畸形相关，1例与Chiari Ⅰ型畸形和幕下蛛网膜囊肿均相关。我们建议，对颈髓空洞症进行CT评估时应常规包括胸椎，以显示空洞可能向胸段的延伸。由于可能存在合并病变，尤其是Chiari Ⅰ型畸形，因此也建议对枕大孔进行扫描。
