An angiogram is usually performed to get a map of the body, and the doctor may also perform some other tests at the same time. The most common of these is angioplasty and stenting. In the case of a narrowed blood vessel, a small balloon is inflated to widen the artery. While this often does the trick, sometimes the doctor will also insert a stent, a metal tube will remain in the artery to keep it open. This is usually a painless process, and the patient should require only a mild sedative.
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