Word: ultrasound
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Dates: during 1970-1979
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...Electronic fetal monitoring is used in many hospital maternity units during labor and delivery. A sonar-like ultrasound system keeps track of the baby's heart rate, and an electrically wired belt across the mother's abdomen notes uterine contractions. Electrodes are attached to the baby's head to get an electrocardiogram. Blood samples for analysis may be drawn from the baby's scalp. The object: to detect fetal problems early enough for physicians to intervene. The U.S. spends some $80 million a year on this effort, and the fetal death rate...
Psychosurgery involves the destruction of a small section of brain--known as the amygdala--which supposedly controls aggressive behavior. A number of methods can be used to destroy the tissue, including ultrasound or laser beams. Only a very small section of tissue, about 1/600 of an inch, is damaged in the process...
...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...