An ultrasound scan is a medical test that uses high frequency sound waves to capture live images from the inside of the your body including various organs is known as Sonography. It is used to help diagnose the causes of pain, swelling and infection in the bodies internal organs and also to examine a baby in pregnant woman and the brain and hips in infants. Its also used to help guide biopsies, diagnose heart conditions and assess damage after a heart attack .An Ultrasound is safe and non-invasive.