roentgenography of the spinal cord to detect possible lesions (usually after injection of a contrast medium into the subarachnoid space)

A water-soluble, radio-opaque dye is injected into the cerebro-spinal fluid. This allows nerve tissue to be viewed on x-ray and enables a doctor to trace any nerve entrapment. This is an invasive procedure that many people report to be unpleasant.

injection of dye into the spinal fluid which can be visualized on x-ray identifying areas of pressure on the spinal nerves or cord

X-ray examination of the sub-arachnoid space. Contrast medium is injected into the sub-arachnoid space, by inserting an injection needle between 2 vertebra and through the dura and arachnoidea. The dura will offer some resistance, but when the point of the needle is inside the sub-arachnoid space CSF will trickle out. 10-20 ml of contrast medium is injected slowly, replacing and gradually mixing with the CSF. On the X-ray picture the CSF will be bright because of the contrast medium, and the spinal cord and nerves branching off the spine will appear as darker shadows, the nerves having a slight feathery look. Filling defects may indicate pathology, either a narrowed spinal canal tumour taking up place or a slipped intervertebral disk.

an x-ray which shows the spinal cord and spinal nerve roots using x-ray contrast. Myelograms can look at the neck or back. See myelography.

A radiographic procedure using contrast material to visualize the spinal column and its contents.

Myelography is a type of radiographic examination that uses a contrast medium to detect pathology of the spinal cord, including the location of a spinal cord injury, cysts, and tumors. The procedure often involves injection of contrast medium into the cervical or lumbar spine, followed by several X-ray projections. A myelogram may help to find the cause of pain not found by an MRI or CT.