What Is a Myelography?

Medical examination means, for structures or organs that lack natural contrast, such as spinal cord blood vessels, substances that are higher or lower than the structure or organ can be introduced into the organ or the interstitial space of the common network to make contrast for visualization and imaging.

Spinal angiography

Medical examination methods. For structures or organs that lack natural contrast, such as spinal cord blood vessels, substances that are higher or lower than the structure or organ can be introduced into the organ or the common network space to make contrast for visualization.

(1) Benign and malignant tumors of the spinal cord.

(2) Spinal vascular diseases, such as arteriovenous malformations,

In addition to the complication of general angiography, the common complication of spinal angiography is numbness and weakness, and paraplegia may occur in severe cases. This is mainly caused by the hypertonicity and chemical toxicity of contrast agents. Once these symptoms occur, the examination should be stopped immediately. Vasodilator drugs and a small amount of diazepam injection can be injected into the angiographic artery through the catheter. In severe cases, it can be used as a spinal cavity.

Spinal angiography includes

(1) Vertebral artery and

(1) Use non-ionic water-soluble contrast agents as much as possible.

(2) 3 ~ 10ml lidocaine or procaine can be injected before injecting the contrast agent to reduce the sensitivity of blood vessels to side effects of the contrast agent.

(3) During carotid angiography, inhaling oxygen can significantly reduce nausea, vomiting, and convulsions.

(4) Try to use small-diameter catheters as far as possible. It should not be inserted too deep into the intercostal and lumbar arteries, so as not to cause the two or three co- trunks to lose the opportunity to develop the proximal branches. Inserting too deep can also block blood vessels and cause complications , Especially the middle thoracic intercostal artery, it should be paid attention not to insert too deep and stay too long.

(5) If vascular diseases such as arteriovenous malformations are found, the amount of contrast agent injection should be appropriately increased, and the imaging time should be extended accordingly.