Language does not simply mirror reality, it helps create our sense of reality by giving meaning to events. Rather than thinking of ideas in coming up with words to express them, we usually think in words. Inaccurate use of language can harm speakersâ credibility by making them sound less intelligent or ill informed.
Ultrasound is high frequency sound wave with frequencies of 20 kHz or higher. (Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth.However, more interesting applications of ultrasound are in the field of medicine. Using an array of piezoelectric transducers, ultrasound can be used to image the internal organs.Fig. 1) Ultrasound has many practical applications. It is often used in cameras to measure distance and used in ships to measure sea depth. However, more interesting applications of ultrasound are in the field of medicine.
The transducer sends and receives sound waves through the body, then converts the waves into images on a monitor. Normal and abnormal tissues and organs contain different acoustic properties which are recorded by the sound waves during an ultrasound. For example, an ultrasound would be able to show the presence of a gallstone or cyst, as well as the swelling of the liver. An abdominal ultrasound can be used to evaluate the gallbladder, liver, bile ducts, pancreas, spleen, and kidneys.