The choice of contrast agent for myelography in patients with nonpenetrating cervical spine trauma.

Forty patients with neurological deficits from cervical spine trauma had cervical myelography with metrizamide, gas, iophendylate, or a combination thereof. At a low dosage (less than or equal to 1.25 g I), metrizamide was found to be not only the most effective in demonstrating the spinal cord but also safe if used with a C-arm biplane fluoroscopic unit which has tomographic capability.