Diagnostic Medical Sonography

Sonography is a non-invasive medical procedure that uses the echoes of high-frequency sound waves (ultrasound) to construct an image (sonogram) of internal organs or body structures. In sonography, a transmitting device (the transducer) sends out high-frequency ultrasound waves. Harmless sound waves, which contain no radiation, bounce off the surfaces of the object they hit. The reflected sound forms an echo that is visualized on the screen.