Word: scanners
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...Radiologist Earl K. Dore discovered the clot through two recently refined tests using radioactive isotopes. First they injected human albumen tagged with radioactive iodine-131 or technetium into an arm vein. The radiant particles circulated through the small blood vessels of Nixon's lungs, and a scintillation scanner took an electronic "picture" of their distribution. Nixon's scan showed a blank area on the outer side of the right lung: the clot had settled there in a small artery, leaving an area of dead tissue where no blood is circulated to take up oxygen. Then the doctors...
...system, which uses an optical scanner to record information, totally eliminates the manual steps currently needed to charge out library materials...
...three RCA vidicon cameras (which make up one of the sensing systems), controllers at NASA'S Goddard Space Flight Center shut the cameras down until they could locate the problem and send new instructions to the satellite's computer. Meanwhile, the other system, a multispectral scanner built by Hughes Aircraft Co., was fully able to take up the observational slack...
...stickers can be put on at either the producer's plant or in the store. Coded tags for meat and fresh produce are affixed by the butchers or clerks who weigh them. At the checkout counter the cashier rapidly moves the code marks across an optical scanner. This relays the information to a computer, which is connected to a screen and a cash register. As the computer flashes the price of each item on the screen, it also rings up the cost on the register, emitting bleeps for each item. When the computer is finished, the cashier punches...
Such revelations have been surprisingly accurate. In one case, In-111 disclosed a lung tumor six months before it became visible on X rays. In another, the scanner showed a cancer six centimeters wide. From the operating room, the pathologist studying the growth phoned Hunter to say that the radiologist had been wrong-the cancer was only three centimeters wide. Later, he corrected himself; more careful examination revealed a spread of malignant cells through the six-centimeter zone...