Ultrasound and Doppler - Images Diagnostic Center

Ultrasound and Doppler


Ultrasound imaging, also called sonography, involves exposing part of the body to high-frequency sound waves to produce pictures of the inside body. Ultrasound exams are safe and non-invasive and do not use ionizing radiation (x-ray). Since ultrasound images are captured in real-time, they can show the structure and movement of the body’s internal organs. Conventional Ultrasound displays the images in thin, flat sections of the body. Doppler ultrasound is a special ultrasound technique that evaluates blood as it flows through a blood vessel, including the body’s major arteries and veins in the abdomen, arms, legs and neck.

A Doppler ultrasound test uses reflected sound waves to evaluate blood as it flows through a blood vessel. It helps doctors evaluate blood flow through the major arteries and veins of the arms, legs and neck. It can show blocked or reduced blood flow through narrowing in the major arteries of the neck that could cause a stroke. It also can reveal blood clots in leg veins (deep vein thrombosis, or DVT) that could break loose and block blood flow to the lungs (pulmonary embolism).