Medical ultrasound plays an integral role in providing patient care. This is in part because ultrasound can be used on every part of the body. Organs like the kidneys, liver, gallbladder, and the heart are all commonly assessed with ultrasound. It is even possible to scan the brain, the lungs, the arteries and veins. HOW DOES IT WORK? Ultrasound began with sonar. Sonar is what is used to see in the water. The sound waves are sent out and when it hits an object, the waves refl