An ultrasound technician is a health care professional who uses special equipment with high-frequency sound waves to help physicians and other medical professionals diagnose patient conditions. Some people also refer to ultrasound technicians as ultrasonography technicians, ultrasound technologists and sonographers.

Ultrasound technicians, sonographers, and ultrasound technologists are interchangeable terms used to describe a highly specialized and trained allied health professional. Often, an ultrasound technologist is associated with performing pregnancy ultrasounds, though career opportunities extend beyond obstetrics.

Diagnostic Medical Sonographers, also known as ultrasound technicians, are highly trained healthcare professionals who perform ultrasound exams. They must be knowledgeable about the anatomy and physiology of the body and have a thorough understanding of the technology and techniques used in ultrasound imaging.

An ultrasound technologist performs diagnostic sonographic examinations using ultrasonic equipment as directed by physicians. This is to locate, evaluate, and record critical functional, pathological, and anatomical data. He/She schedules and coordinates tests, records test results and maintains operational logs.

Sonographers are highly skilled professionals who use imaging equipment that non-invasively emits sound waves directed towards internal organs, blood vessels, tissues and other structures. They can work in hospitals, clinics, or private practices and help physicians gather data needed to reach diagnostic decisions.