- : 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.
* * *- cervical m. contrast medium introduced directly into the cervical subarachnoid space, or moved with the help of gravity from the lumbar region, to outline the cervical cord and nerve roots.
* * *my·e·lo·gram 'mī-ə-lə-.gram n1) a differential study of the cellular elements present in bone marrow usu. made on material obtained by sternal biopsy2) a radiograph of the spinal cord made by myelography
* * *my·elo·gram (miґə-lo-gram) 1. a radiograph of the spinal cord. 2. a graphic representation of the differential count of cells found in a stained preparation of bone marrow.
Medical dictionary. 2011.