ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY. ALEXANDER TSIARAS / SCIENCE PHOTO LIBRARY.
Breast screening technique by water-path ultrasonography, a method of early detection of breast cancer. The patient lies face down on a table, her breast submerged in warm water. Ultrasonic waves, emitted from a transducer in the bottom of the tank, enter the breast in cross- sections; the reflected waves are processed by computer, and presented on the T.V. screen on the left.
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