Word: imaginging
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Ultrasound Imaging. Also known as echocardiography, this is probably the most widely used noninvasive test. By bouncing high-frequency sound waves off the heart in much the same way that surface ships search for submarines, physicians can get a picture of the heart's interior, its chambers and valves...
Nuclear Scanning. Using this technique, doctors can examine the heart's pumping performance and check for evidence of obstruction in the coronary arteries. Radioactive isotopes with affinities for certain tissues are injected into the bloodstream. A special imaging device, called a scintillation camera, picks up the gamma rays emitted...
The observations came from the 120-in. reflector at the University of California's Lick Observatory, enhanced by computer technology. To study such extremely faint objects, astronomers had to focus their light onto a photo-imaging tube akin to the night-vision devices used by the military in Viet...
"The Robot Revolution" [Dec. 8] graphically illustrates a couple of phenomenal achievements-microcomputers and computer imaging-that came out of the space program. Americans who have been grumbling for years that the only thing we got out of the space program was a bunch of rocks should have their calculators...
At the Lockheed Missiles and Space Co., engineers are already pushing one step further into a technique called "gray-imaging." Similar to Rosen's system but more elaborate, the Lockheed method uses a camera image that contains 100,000 different dots, each graded from 0 for pure white to...