What is cerebral angiography?
Cerebral angiography is an examination method for cerebrovascular diseases, which is generally considered as the gold standard for the diagnosis of cerebrovascular diseases. How is cerebral angiography done? Usually, the femoral artery is punctured and sheathed under local anesthesia, and then the angiographic catheter is introduced through the sheath hole under the guidance of the guide wire. After the catheter is in place, the guide wire is withdrawn, and the contrast agent is injected one by one. The vascular morphology, branches, collateral branches, blood flow direction, speed and abnormal phenomena can be seen under X-ray, so as to achieve the purpose of diagnosing diseases. Cerebral angiography is a minimally invasive examination. It is better to make further choice after finding abnormalities by CTA, MRA and vascular ultrasound.
Why do we do cerebral angiography?
Cerebral angiography is the most important examination method to understand cerebrovascular diseases under pathological conditions, and it is irreplaceable examination methods such as ultrasound, nuclear magnetic resonance, CTA, etc.
Which diseases should have cerebral angiography? 1. Arterial stenosis - cerebral insufficiency; 2. Cerebral thrombosis; 3. Cerebral infarction; 4. Venous sinus thrombosis; 5. Subarachnoid hemorrhage; 6. Intracranial aneurysm; 7. Arteriovenous malformation; 8. Cavernous sinus of internal carotid artery; 9. Dural arteriovenous fistula, etc.
What are the symptoms of these diseases? Common dizziness, limb weakness, numbness, amaurosis, headache, tinnitus, cerebral ringing, decreased vision, convulsions, eyelid swelling, etc.
