What is ultrasonic waves? What is ultrasonography?
Ultrasonic waves are sound waves with frequencies higher than the upper limit of human hearing (typically above 20,000 Hz). They are used in various applications such as imaging, cleaning, and measuring distances.
Ultrasonography, also known as ultrasound imaging, is a medical imaging technique that uses ultrasonic waves to visualize internal body structures. It is commonly used for diagnostic purposes, such as examining organs, tissues, and pregnancies.