Ultrasound, or sonography, is a procedure that uses high-frequency sound waves to show what is inside your body. Ultrasound is an excellent tool in several diagnostic situations, including: examining the fetus during pregnancy, visualizing certain gynecological functions in non-pregnant women, revealing information about tumors and cysts, evaluating the gallbladder and related organs and for non-invasive evaluation of vascular disease. An ultrasound examination is fast, with very little discomfort. No radiation or x-rays are necessary. If you have questions, please talk to your physician or call Imaging Services at 406-823-6441.