Ultrasound diagnostic specialists use a device that emits high frequency sound waves that produce images of tissues, blood flow and organs within the body. Vascular technologists and sonographers employ this radiation-free imaging to study many areas of the body.
Specialists help patients prepare for the ultrasound by applying a gel to the skin of the area being visualized. They analyze the images to ensure the area under examination is covered, and they assist in locating preliminary findings. Technicians operate, maintain and prepare the ultrasound equipment. They can tell the difference between abnormal and normal images and track a patient's records and findings.
Those specializing in vascular technology will perform both noninvasive and invasive tests. Invasive tests generally involve probes.