Sonography or ultrasonography uses high frequency sound waves to generate an image for use in diagnostics. The most common use of sonography is in obstetrics (providing an ultrasound image of a fetus), but there are uses for sonography in various other areas of the body.
Ultrasound technicians use special equipment to direct the sound waves to the appropriate area of the patient’s body. Technicians operate this equipment and tape, transmit or photograph the resulting image for purposes of interpretation and diagnosis by the physician.
During diagnostic sonography, technicians look for subtle visual differences that contrast healthy parts of the body with unhealthy ones. They take measurements, calculate the findings, and provide preliminary analyses for the physicians. They also keep patient records and adjust and maintain the equipment.
Areas of specialty may include obstetrics and gynecology, abdominal sonography, neurosonography, breast sonography, vascular sonography, or cardiac sonography.