ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Angiography video of a right upper limb venography (x-ray of the veins) in a 42-year-old patient with acute renal failure. This view shows the forearm and elbow. This procedure is used to explore the brachial veins through the injection of iodine. Angiography is an imaging technique in which a radio-opaque contrast medium is injected into blood vessels to allow them to be seen on an X-ray.
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