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Cervical myelography with iohexol and metrizamide. A randomized double blind clinical study
A Servo1, M Porras, J Jääskinen
1Roentgen Division, Töölö Hospital, Helsinki University Central Hospital, Finland.
Acta Radiologica. Supplementum
|January 1, 1986
Summary
Iohexol demonstrated fewer adverse effects than metrizamide in cervical myelography. This randomized study found iohexol to be a safer contrast medium for spinal imaging procedures.
Area of Science:
- Radiology
- Neuroradiology
- Medical Imaging
Background:
- Cervical myelography is a diagnostic imaging technique used to visualize the spinal cord and surrounding structures in the neck.
- Contrast media are essential for enhancing image quality during myelography.
- Evaluating the safety and efficacy of different contrast agents is crucial for patient care.
Purpose of the Study:
- To compare the safety and efficacy of iohexol and metrizamide as contrast media in cervical myelography.
- To assess the incidence and types of side effects associated with each contrast agent.
Main Methods:
- A randomized, double-blind study involving 100 patients undergoing cervical myelography.
- Comparison of iohexol and metrizamide at a concentration of 240 mg I/ml.
- Evaluation of image quality and patient-reported side effects.
Main Results:
- Image quality was comparable between iohexol and metrizamide.
- Iohexol group experienced significantly fewer side effects (42%) compared to the metrizamide group (80%).
- Common side effects included headache, nausea, vomiting, and mental reactions, with lower incidences for iohexol.
Conclusions:
- Iohexol is associated with a lower incidence of adverse events compared to metrizamide in cervical myelography.
- Iohexol offers a potentially safer alternative for contrast-enhanced spinal imaging.
- Further research may explore long-term outcomes and specific patient populations.