1) Roentgenogram 
An x-ray of the spinal canal following injection of a contrast material into the surrounding cerebrospinal fluid spaces.
An x-ray of the spinal cord after an injection of dye into the space between the lining of the spinal cord and brain.
<investigation> A diagnostic procedure where a radiopaque contrast dye is injected into the spinal canal. X-rays are then performed which reveal the anatomy of the spinal canal. Myelograms can be used to diagnosis disk disease, spinal stenosis and tumours of the spinal canal. MRI and CT scanning have largely displaced the use of this more inv...
(mi´ә-lo-gram) the film produced by myelography. a graphic representation of the differential count of cells found in a stained representation of bone marrow.
A roentgenogram of the spinal cord taken after contrast material has been injected (through an LP needle) into the subarachnoid space of the spinal canal.
An x-ray of the spinal canal after the injection of a radio-opaque contrast medium into the subarachnoid space.
A special x-ray of the spinal cord
Type: Term Pronunciation: mī′ĕ-lō-gram Definitions: 1. Radiographic contrast study of the spinal subarachnoid space and its contents.
Myelogram: An x-ray of the spinal cord and the bones of the spine. During a myelogram, a contrast material that is injected into the spinal canal is used to visualize the structures of the spinal cord and nerve roots.Common Misspellings: mylagram
involves the injection of a dye or contrast material into the spinal canal; a specific x-ray study that also allows careful evaluation of the spinal canal and nerve roots 
A myelogram is an X-ray study that involves the injection of a dye into the spinal canal to assess the nerve roots. A needle is injected into the thecal sac containing the nerve roots with radiopaque dye that will highlight the nerve areas in the X-ray image. A myelogram is typically used to evaluate for disk pathology and degenerative changes of t...
[n] - X-ray film of the spinal cord and spinal nerve roots and subarachnoid space
noun X-ray film of the spinal cord and spinal nerve roots and subarachnoid space
an x-ray photograph of the spinal cord, following administration of a radiopaque substance into the spinal subarachnoid space.