Duncan A W, Kido D K
Radiology. 1981 Apr;139(1):109-11. doi: 10.1148/radiology.139.1.7208911.
Serpentine filling defects caused by redundant nerve roots were demonstrated myelographically in three patients with a nonionic, water-soluble contrast material. All patients had either total obstruction or severe stenosis of the subarachnoid space secondary to extradural lesions.
三名患者使用非离子型水溶性造影剂进行脊髓造影时显示出由多余神经根引起的蜿蜒状充盈缺损。所有患者均因硬膜外病变导致蛛网膜下腔完全梗阻或严重狭窄。