Coronary artery fistulas can be spotted through an arteriogram, an x-ray using injected dye to reveal blood vessels.
From the sciencedaily.com
The protocol with the best reported survival in children and adults is an intra-arterial protocol where tumor response is tracked by serial arteriogram.
From the en.wikipedia.org
More examples
An X ray of an artery filled with a contrast medium
(arteriography) roentgenographic examination of arteries
Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins and the heart chambers. ...
(Arteriography) An X-ray of the carotid artery taken when a special dye is injected into the artery.
(Arteriography) (angiography) - procedure for determining the circulation of blood to an organ or region of the body (e.g. the brain). Involves injecting a potentially harmful (usually radioactive) dye.
A procedure that provides a scan of arteries going to and through the brain.
An x-ray of the arteries to detect blockage or narrowing of the vessels.
X-ray visualization of the arterial lining after injection of radiopaque dye into a specific artery or into the bloodstream. It aids in the diagnosis of vascular occlusions and of athrosclerotic plaques, as well as of other cardiovascular abnormalities.
A film demonstrating arteries after the injection of a dye.