Ultrasound is safe and painless, and produces photos of the within of the body victimization sound waves. Ultrasound imaging, additionally referred to as ultrasound scanning or prenatal diagnosis, involves the utilization of a little electrical device (probe) and ultrasound gel placed directly on the skin. High-frequency sound waves square measure transmitted from the probe through the gel into the body. The electrical device collects the sounds that restore and a laptop then uses those sound waves to make a picture. Ultrasound examinations don't use radiation (as employed in x-rays), so there's no radiation exposure to the patient. As a result of ultrasound pictures square measure captured in period, they'll show the structure and movement of the body's internal organs, still as blood flowing through blood vessels.