TOPIC: ULTRASONOGRAPHY

🌟IMPORTANT POINTS TO REMEMBER

🔹USG: It is also defined as the study of tissues of the human body with the utilisation of reflections (echoes) of high-frequency sound waves (USs) which are introduced on the body surface, in the area under examination, by a device called ‘a transducer’. The word ‘sonography’ means imaging with US.

🔹Principle of USG: The USG unit consists of a transducer and the monitor on which sonogram can be seen. The transducer generates the high-frequency sounds by means of ‘piezoelectric effect’, produced by a special kind of crystal located in the transducer which will vibrate when stimulated by electricity.