Myelography Descending

Descending myelography is a method of studying the spinal cord, which consists of introducing a contrast agent into the spinal canal and its subsequent distribution into the subarachnoid space below the injection site, which allows one to obtain information about the condition of the spinal cord and nerve roots.

To perform descending myelography, a special needle is used, which is inserted into the spinal canal at the level of the lumbar or sacral spine. Then a contrast agent is injected through a needle into the spinal canal, which spreads through the subarachnoid space and enters the subarachnoid space.

Descending myelography can determine the presence of damage to the spinal cord or nerve roots, as well as identify circulatory disorders in the spinal cord. In addition, descending myelography can be used to diagnose tumors and other pathological processes in the spinal cord and nerve roots.

However, like any other research method, descending myelography has its limitations and contraindications. For example, it cannot be performed if there are inflammatory processes in the area where the needle was inserted, if there is an allergy to the contrast agent, or if there are contraindications to X-ray examination. Also, descending myelography cannot be used to diagnose brain diseases.

**Myelography** is a method for studying the cranial nerves and brain by introducing a substance with contrasting properties into the subdural space and examining the condition of the meninges visible through it. The method makes it possible to clarify the nature of changes in cerebral vessels with their membranes and brain substance under different