本文观察了５０例手术证实的腰椎管狭窄症椎管造影表现，结合３０例正常对照，着重研究造影柱形态改变，神经根鞘袖的充盈状况，硬外隙宽度和硬囊矢径的变化。结果表明，若硬外隙宽度在Ｌ３～Ｌ４椎间水平大于４ｍｍ、Ｌ４～Ｌ５大于５ｍｍ、Ｌ５～Ｓ１大于６ｍｍ或硬囊矢径小于８ｍｍ，提示有椎管狭窄。其造影表现可分为６种类型①束腰型②残根型③单侧压迹型④节段性充盈缺损型⑤藕节型⑥长柱型。本研究不仅可提高对腰椎管狭窄症的诊断水平，同时也为设计手术方案提供了更可靠的依据。 In this study, 50 cases of lumbar spinal stenosis confirmed by surgery were studied. The changes of the morphology of the shadow column, filling state of the nerve root sheath and sleeve, the width of the hard external capsule and the radius of the sac were studied with 30 normal controls. The results showed that if the hard outer gap width L3 ~ L4 intervertebral level greater than 4mm, L4 ~ L5 greater than 5mm, L5 ~ S1 greater than 6mm or hard capsule radius less than 8mm, suggesting that spinal stenosis. The angiography can be divided into 6 types ① corset type ② residual root type ③ unilateral indentation type ④ segmental filling defect type ⑤ lotus root ⑥ long column type. This study not only can improve the diagnosis of lumbar spinal stenosis, but also provide a more reliable basis for the design of surgical options.