Ultrasound examinations use special equipment that sends high-frequency sound waves into the body. These sound waves bounce back, or echo, off internal structures and organs. A computer converts the sound waves into moving images that are displayed in real time on a computer monitor.
An ultrasound exam, also known as sonography (sonogram), captures images that show the size, shape, consistency and position of internal organs or soft tissue. Ultrasound images are useful in the examination of most internal organs. The procedure is frequently performed during pregnancy.
Additionally, the exam is used to guide biopsies or the insertion of peripherally inserted central catheter (PICC) lines.