A comparison of iohexol and iopamidol for lumbar myelography

The use of iopamidol and iohexol for lumbar myelography is compared in this study. Fifty-eight patients were examined, the contrast media being allocated on a randomised double-blind basis. Radiographic quality was good with both media. Headache and an increase of back pain were the most frequent symptoms, though the incidence of side-effects was slightly but significantly greater with iohexol. We conclude from our study that while the radiographic quality is comparable, iopamidol seems to be slightly better tolerated.