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2. You will be admitted to the hospital a day before or on the day of the examination.

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4. An allergy to the contrast agent needs to be checked and fasting for 6 hours is needed.

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6. Before the examination, you need to be informed of and sign the consent form for cerebrovascular angiography.

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8. The examination is conducted in the brain angiography room on the 3rd floor of the main building.

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10. You lie down under a special imaging device in which the blood vessels of the brain are projected and observed.

※ If you have any inconvenience or questions, notify the waiting medical staff.

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2. Test areas include the upper leg (groin) femoral artery or the upper brachial artery of the arm, which will be sterilized before local anesthesia is performed.

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4. After the sterilized area is punctured (the blood vessel is pierced), the catheter is inserted and the contrast agent is injected.

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6. The test takes about 30 minutes to 1 hour.

※ Since it is performed under local anesthesia, the pain is not severe, but there may be some discomfort. During the test, you may feel a burning sensation, nausea, or headache, but it will disappear quickly, so you can rest assured. If your symptoms are severe, inform the medical staff right away.

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2. If there is no stenosis or blockage of cerebral blood vessels or abnormal findings, the test is terminated.

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4. If there is an abnormal finding, thrombolysis and cerebrovascular intervention are performed at the discretion of the medical staff.

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6. Cerebrovascular intervention is usually performed immediately following the angiography, but depending on the lesion, it may be scheduled and performed on a different date.

※ If you experience chest pain, shortness of breath, or dizziness after the test, notify the medical staff immediately.