Angiogenesis: The process of developing new blood vessels. Angiogenesis is critically important during the normal development of the embryo and fetus. It also appears to be important during tumor formation.
Angiogram: An X-ray image of blood vessels. The vessels can be seen because a contrast dye within them blocks the X-rays from developing an imaging film.
Angiography: A procedure performed to view blood vessels after injecting them with a radioopaque dye that outlines them on x-ray. This technique can be usefully used to look at arteries in many areas of the body, including the brain, neck (carotids), heart, aorta, chest, pulmonary circuit, kidneys, gastrointestinal tract, and limbs.
- Angiography, coronary
The most accurate method (the “gold standard”) for evaluating and defining coronary artery disease (CAD). Coronary angiography is used to identify the exact location and severity of CAD. During coronary angiography, a small catheter (a thin hollow tube with a diameter of 2-3 mm) is inserted through the skin into an artery in the groin […]
- Angiography, fluorescein
Angiography, fluorescein: A test to examine blood vessels in the retina, choroid, and iris of the eye. A special dye is injected into a vein in the arm and pictures are taken as the dye passes through the blood vessels in the eye. The dye is injected into a vein in the arm. The pictures […]
- Angioid streaks
Angioid streaks: Tiny breaks in the elastin-filled tissue in the retina in the back of the eye. Angioid streaks are seen in patients with pseudoxanthoma elasticum, a rare disorder of degeneration of the elastic fibers with tiny areas of calcification in the skin, retinae, and blood vessels, and they are visible during an examination using […]