spinal canal myelography

例句：

1. 1.The patient underwent spinal canal myelography to investigate the cause of his back pain.
   患者进行了脊髓造影术以调查其背痛的原因。
2. 2. This procedure is commonly used for imaging the spine and detecting any abnormalities.
   这种程序通常用于成像脊柱并检测任何异常。
3. 3. During the procedure, a contrast agent is injected into the spinal canal to create detailed images.
   在手术过程中，将对比剂注入脊髓腔以创建详细的图像。