ST BARTHOLOMEW'S HOSPITAL, LONDON / SCIENCE PHOTO LIBRARY ST BARTHOLOMEW'S HOSPITAL, LONDON / SCIENCE PHOTO LIBRARY
Coronary angiography procedure in progress in a hospital operating theatre. Angiography is the X- ray examination of an artery that has been outlined by prior injection of a radio-opaque contrast medium. The contrast medium is introduced through a coronary catheter inserted via an access point in the brachial artery of the arm. The catheter is manipulated into both coronary arteries in turn. The resulting cine film indicates the presence & extent of arterial obstructions caused by the formation of fatty atheroma plaques, accumulation of which may result in complete blockage & a subsequent heart attack.
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