Johansen J G
Spine (Phila Pa 1976). 1986 Jun;11(5):492-5. doi: 10.1097/00007632-198606000-00020.
Thirty patients with myelographic shortening of a single nerve root sheath without indentation of the dural sac were studied by CT. Lateral disc herniation was diagnosed by CT in 18 patients. The myelograms of these patients were considered suspicious of disc herniation in three patients, uncertain in seven, and misinterpreted as lateral recess stenosis due to bony encroachment in eight. CT is more reliable than myelography in assessment of the etiology of nerve root compression in the lateral recess.
对30例单个神经根鞘造影显示缩短但硬膜囊无压迹的患者进行了CT研究。CT诊断出18例患者存在外侧椎间盘突出。这些患者的脊髓造影中，3例被认为可疑为椎间盘突出，7例不确定，8例因骨质侵蚀被误诊为侧隐窝狭窄。在评估侧隐窝神经根受压的病因方面，CT比脊髓造影更可靠。
