Ultrasonography is a method for making diagnostic images based on the use of ultrasound. It helps give a clear picture of the inside of the body, including joints, muscles, blood vessels, tendons, and internal organs. In this test, the person has to lie down on a flat surface next to a monitor and a technician. The technician does the test by putting a gel on the area that needs to be checked and then putting the USG probe on that area. During a TVS procedure, the probe is put into the body from the inside. Before the process takes place, the person has to go without food.