Method The lumbar intervertebral discs of 150 patients with backleg pain were scanned by MRI, and the changes of appearance and signal in lumbar intervertebral discs were observed.

• 方法:对150例腰腿痛患者行腰椎磁共振扫描,观察腰椎间盘形态、信号及其与周围结构的关系。