An angiogram is a diagnostic imaging test used to view the inside of blood vessels and assess blood flow. It is commonly performed in vascular surgery to detect narrowing, blockages, or malformations in arteries, especially in the legs, neck, abdomen, or arms.

The procedure involves inserting a thin catheter into an artery, usually in the groin or arm. A contrast dye is injected through the catheter, and real-time X-ray imaging (fluoroscopy) is used to map the blood vessels in detail.

Angiograms are often used to evaluate conditions like peripheral artery disease (PAD), carotid artery disease, or aneurysms. In some cases, angioplasty or stenting can be done during the same procedure.

It is typically performed under local anesthesia, and most patients go home the same day.