Ultrasounds are performed by specialised technicians called sonographers. Ultrasound is a diagnostic imaging tool which utilises sound waves of high frequency to create images of the body with the use of a hand-held device called a transducer.
The transducer produces and receives the sound waves and demonstrates anatomical function in real time showing movement. Ultrasound is regarded as generally safe as it does not provide exposure to ionising radiation like x-rays and CT scans.