Cerebral angiography

Cerebral angiography is a new X-ray examination technique widely used in clinical practice since the 1990s. It is the first choice of an access artery, generally using the right femoral artery, and placing an arterial sheath through the right femoral artery. The tube is selected with different catheters, and under the guidance of the guide wire, the artery to be displayed is selected, and the iodine-containing contrast agent is injected. The vascular trajectory through which the contrast agent passes is continuously photographed, and the computer-assisted imaging is cerebral vascular digital subtraction angiography (DSA). Basic Information Specialist classification: neurological examination classification: X-ray Applicable gender: whether men and women apply fasting: not fasting Tips: should fast, water, avoid nausea and vomiting during surgery. Normal value You can specifically understand the morphological changes of blood vessels, such as walking, distribution, displacement, thickness and cycle time changes. It is finally determined whether the lesion is the blood vessel itself, or whether the lesion in other parts of the brain causes blood vessel changes. Clinical significance Indications: 1 intracranial vascular diseases, such as intracranial aneurysms, arteriovenous malformations, arteriovenous fistula, arterial embolism. 2 intracranial space-occupying lesions, such as intracranial tumors, abscesses, cysts, hematoma and so on. 3 extracerebral hematoma caused by traumatic brain injury. 4 Surgery effect and cerebral blood circulation status were observed after operation. Cerebral angiography is one of the most effective methods for examining cerebrovascular disease. It is to visualize the morphology and pathology of the cerebral blood vessels and the nature and extent of the lesions by injecting the iodine-containing contrast agent into the internal carotid artery or vertebral artery to visualize the cerebral blood vessels. This test is of particular value in the diagnosis of cerebrovascular disease. Precautions Contraindications: 1 senile arteriosclerosis should be cautious. 2 have serious heart, kidney, liver dysfunction. 3 contrast agents are allergic. 4 have a serious bleeding tendency. Before angiography: should be fasted, water-free, to avoid nausea and vomiting during surgery. During angiography: keep quiet, do not rotate the head arbitrarily, need to lie flat after angiography, and keep the puncture lower limb brake for not less than 8 hours, drink plenty of water to facilitate the discharge of contrast medium, try not to eat high protein diet within 24 hours. Inspection process First, the patient must first be tested for drug (iodine) sensitivity before receiving the angiogram. When there is no adverse reaction, the angiography can be accepted. However, patients must be fasted and banned before angiography to avoid nausea and vomiting. The patient's neck is then washed with soapy water. During the angiography, the patient should be supine, the neck should be slightly raised, keep quiet, do not turn the head, after local anesthesia, puncture the carotid artery with a puncture needle in the side of the lesion, and inject the drug quickly (1 second). After the needle is removed, it is pressed for 10 to 20 minutes to prevent the neck from forming a hematoma. Simultaneous X-ray filming can make brain blood vessels develop. Not suitable for the crowd Elderly atherosclerosis should be cautious. Those with severe heart, kidney, and liver dysfunction, who are allergic to contrast agents, who are prone to severe bleeding are not suitable for this test. Adverse reactions and risks Nothing.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.