For cerebral angiography, your doctor will insert a skinny, adaptable tube called a catheter into your carotid artery. Dye will probably be injected, and afterwards an X-ray will likely be taken to see any abnormalities. This exam is much more invasive than the other kinds of imaging, rendering it riskier. https://titusagmqv.birderswiki.com/1323803/about_arterial_vein_disease_singapore