Ultrasound, or sonography, is a scan that uses high-frequency sound waves to show the inside of the body. The test is safe and easy and does not use X-rays or radiation.

An ultrasound exam usually takes 30 minutes. The technologist will ask the patient to lie or sit on an examination table. The technologist can then lower the lights in the room to make the computer display easier to see. A gel will be applied to the patient’s skin over the area to be scanned. This gel allows the ultrasound transducer, which transmits images to the computer, to slide easily over the skin. As the transducer transmits live images of the patient’s body to the computer, the technologist will capture pictures for permanent reference and sent to the radiologist for interpretation. A report will be sent to the ordering provider.