Word: axial
(lookup in dictionary)
(lookup stats)
Dates: during 1980-1989
Sort By: most recent first
(reverse)
Although Japanese hospitals are sometimes endowed with the latest hightech equipment, they often lack the trained personnel to use it. Japan has 2,500 computerized axial tomography (CAT) scanners, sophisticated X-ray devices that reveal detailed cross-sectional views of the body. Yet there are only 1,500 radiologists in the country to handle the machines. By contrast, the U.S. has about 2,800 CAT scanners, but more than 12,000 specialists are qualified to use them...
...years ago, doctors began to see more detail with a new kind of X-ray machine that uses a computer to construct clear, cross-sectional views of the body. The CAT scanner (for Computerized Axial Tomography) revolutionized radiology. But now that virtually every large hospital in the country has invested in one, at about a million dollars apiece, another revolution is under way: Nuclear Magnetic Resonance, or NMR. Currently being studied for approval by the Food and Drug Administration, the new technology is in experimental use at about half a dozen top U.S. medical centers as well as several overseas...
...physicians' greatest fear was that Clark had suffered a stroke. To check, they ordered sophisticated X-ray images of the brain and heart, using a CAT (computerized axial tomography) scanner. In Clark's case, this proved to be a major undertaking. The scanner is on the first floor, and Clark is tethered by two 6-ft. tubes to 375 Ibs. of equipment that powers his heart and is in turn plugged into outlets for electricity and compressed air. Clark had to be switched to an auxiliary battery and air-supply system that allows temporary mobility. Then...
Until recently, treatment has generally been limited to prescribing supplemental estrogen, to slow the resorption rate, and calcium, to facilitate the formation of new bone.* Using a computerized axial tomography scanner, doctors at the University of California in San Francisco are able to take three-dimensional X rays of the bones, measure the loss of minerals and devise an estrogen dosage sufficient to maintain the resorption balance. Says Kaiser-Permanente Endocrinologist Dr. Bruce Ettinger, who does research at U.C.S.F.: "We've been trying to find the smallest dose of estrogen that will prevent osteoporosis. I think we have...
...with a hollow core. It is a cousin of the CAT scanner that nearly a decade ago wedded the technique of X rays with computer technology to give cross-sectional views of internal body structures, not just bones but soft tissues as well. But scanning by CAT (for computerized axial tomography) is limited to anatomy. It lets doctors see an organ's shape and form, but cannot tell how it is functioning. PET (for positron emission tomography) allows the physician to examine the brain and body in ways never before possible, providing metabolic portraits, and revealing the rate...