👉 Myelography is a diagnostic test used to assess the presence and distribution of myelin in the brain. It involves placing electrodes on the skin over the area where there is suspected myelin sheath or abnormality, which can be indicative of damage or injury to the myelin sheath. The test measures the electrical signals generated by the myelin sheath and compares these signals with those produced by healthy neurons, providing a more accurate diagnosis than traditional MRI scans. Myelography is commonly used in