Saint-Louis L A
Corinthian Diagnostic Radiology, New York, NY, USA.
Clin Orthop Relat Res. 2001 Mar(384):122-36. doi: 10.1097/00003086-200103000-00015.
Degenerative spinal stenosis of the lumbar spine is caused by many factors, some of which include: disc herniation, ligamentum flavum and facet hypertrophy, spondylolisthesis, and compression fracture. Most often the stenosis is caused by a combination of these factors. The imaging modalities in routine use to evaluate these conditions are computed tomography, magnetic resonance imaging and computed tomography-myelogram. They each have their advantages and disadvantages although any one of these modalities can adequately diagnose lumbar stenosis. The overall accuracy rate of computed tomography, magnetic resonance imaging, and computed tomography-myelogram has been reported to be similar and even complimentary. It is recommended that the least invasive modality be performed first. Magnetic resonance imaging should be the first choice because it does not require ionizing radiation or contrast injection. The aim of the current study is to present the common causes of lumbar stenosis. Where appropriate, each case is shown with images from each modality so that their similarities and differences can be highlighted.
腰椎退行性椎管狭窄由多种因素引起，其中一些因素包括：椎间盘突出、黄韧带和小关节肥大、椎体滑脱以及压缩性骨折。大多数情况下，椎管狭窄是由这些因素共同作用导致的。常用于评估这些病症的影像学检查方法有计算机断层扫描（CT）、磁共振成像（MRI）以及CT脊髓造影。它们各有优缺点，尽管这些检查方法中的任何一种都能充分诊断腰椎管狭窄。据报道，CT、MRI和CT脊髓造影的总体准确率相似，甚至具有互补性。建议首先采用侵入性最小的检查方法。磁共振成像应作为首选，因为它不需要电离辐射或注射造影剂。本研究的目的是介绍腰椎管狭窄的常见病因。在适当的情况下，每个病例都展示了来自每种检查方法的图像，以便突出它们的异同。
