ISSN: 1939-067X

Journal of Experimental Stroke & Translational Medicine

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An angiogram may be a diagnostic assay that uses x-rays to require pictures of your blood vessels. An extended flexible catheter is inserted through the blood stream to deliver dye (contrast agent) into the arteries making them visible on the x-ray. This test can help diagnose a stroke, aneurysm, arteriovenous malformation, tumor, clots, and arterial stenosis. An angiogram works almost like an x-ray. The body casts a "shadow" on film when it's exposed to the x-ray, very similar to once you hold a flashlight up to your hand and cast a shadow on a wall. Normally your blood vessels can't be seen in an x-ray, but adding a dye contrast agent into the blood stream makes your arteries and veins visible. Contrast agent contains iodine, a substance that x-rays cannot undergo. deliver the contrast agent, a catheter is advanced from the arteria femoralis within the leg to at least one of 4 arteries within the neck that cause the brain. The doctor steers the catheter through the blood vessels while watching a monitor. A fluoroscope machine, called a C-arm, is an arc shaped piece of kit that generates x-rays from one side and pictures them on the opposite side. Contrast is injected into the bloodstream to form the blood vessels visible on the monitor. The result's a sort of roadmap of the arteries.    

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