[A comparison of myodil and omnipaque as contrast media in myelography]

The myelographic results of 30 cases in each group using myodil and omnipaque respectively were compared. As far as intraspinal extramedullary lesions were concerned, the diagnostic value of either contrast medium was almost the same. If CT scan was used along with omnipaque myelography, the fine structural changes could better be observed. As to the intramedullary lesions of the spinal cord, both contrast media seemed to be of less diagnostic value even though CT scan was used together. This was especially true in cases of demyelinating lesions. But it seemed to the authors that the number of the cases studied was too small to draw a definite conclusion. The side effects and toxicity of omnipaque as a contrast medium in myelography were less than those of myodil. However, myodil myelography might be useful and not abandoned in those areas where local economic conditions and facilities were less favorable.