Word: ultrasounds
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...legs tends to clot. It has been known for years that thigh-length elastic stockings aid in controlling clot formation. Now, in the Archives of Surgery, a research team at the Medical College of Pennsylvania and at the Philadelphia Veterans Administration Hospital provides confirmation. The investigators used elaborate Doppler ultrasound instruments to measure the rate of blood flow in the legs of volunteers, with and without stockings. They found that a well-fitted stocking, tight at the ankle, not too snug at the thigh, markedly increases the movement of blood, thus reducing the risk of clotting-and of embolisms...
...their heads. It is definite that they do feel the vibrations, and sometimes when they sing high notes, they feel faint and dizzy, and they often have to sit down. Sopranos are probably not as affected because their voices are smaller." An internist finds the theory scientifically feasible: "Ultrasound shatters molecules, and that's what we are made of. High frequencies in his singing voice could well knock a tenor silly every time he belts out a high...
...heal a little and hope to get at the object later. But there was grave danger that eye fluids would react with the metal and compel removal of the eye. Then Dr. Passmore remembered reading that Dr. Nathaniel Bronson II had begun work in New York on an ultrasound probe to locate foreign bodies in the eye within a millimeter. (X rays have an error range of three to four millimeters, which is considered to be too wide for an eye surgeon...
Pulses & Echoes. With Jimmy anesthetized, Dr. Passmore first rolled the left eyeball over in its socket and applied heat, to "glue" the retina in place so that it would not become detached during surgical manipulation. With an ultrasound device that worked from outside the eyeball, Dr. Bronson was able to get a rough idea where the object was, and Dr. Passmore proceeded to remove the useless, damaged lens from Jimmy's eye. Then Dr. Bronson took up the ultimate in delicate, ultrasound probes, smaller and finer than any dentist's drill. Its tip, about as thick...
Military surgeons in particular are excited over the possibilities for wide use of the ultrasound probe in locating fragments of nonferrous metals, glass and plastics in practically any part of a wounded serviceman's body. On the home front it is expected to be valuable in many types of industrial accidents and, of course, for mischievous, venturesome boys...