How does ultrasound work?
Ultrasound is a medical detection technique that uses high frequency sound waves and their echoes. The technique is similar to the method used by bats, whales and dolphins, as well as SONAR used by submarines. Ultrasound devices transmit sound pulses into your body using a probe, which are reflected back to the probe once they come across an object. The time taken for the pulse to get returned is translated into a picture or sound.
