Naidich T P, Harwood-Nash D C
AJNR Am J Neuroradiol. 1983 May-Jun;4(3):633-6.
Metrizamide computed tomographic myelography demonstrates well: partial- and full-thickness diastematomyelia; the presence, shape, and (a)symmetry of the two hemicords; focal persistence of two anterior spinal arteries, one supplying each hemicord; the single or double subarachnoid space(s), arachnoid tubes, and dural tubes which encompass the hemicords; the dural septum formed by the medial walls of the two dural tubes; the dural cleft situated between the two walls of the dural septum; the bone spur within the dural cleft; and the presence of any tethering dorsal fibrous bands or aberrant dorsal nerve roots.
部分和全层脊髓纵裂；两个半脊髓的存在、形态及（非）对称性；两条脊髓前动脉的局部存留情况，每条动脉供应一个半脊髓；包绕半脊髓的单个或双个蛛网膜下腔、蛛网膜管及硬脊膜管；由两个硬脊膜管内壁形成的硬脊膜隔；位于硬脊膜隔两壁之间的硬脊膜裂；硬脊膜裂内的骨赘；以及任何终丝背侧纤维带或异常背侧神经根的存在情况。
