What is a Doppler ultrasound? This noninvasive diagnostic test uses high-frequency sound waves to determine the speed and direction of blood flow in the heart. It is helpful in indicating the presence ...

Background Power Doppler ultrasound (US) of synovial tissue has become an important tool for estimating inflammatory activity in rheumatoid arthritis (RA). Most studies are currently using the ...

Venous congestion is associated with worse outcomes, particularly acute kidney injury (AKI), for critically ill patients. Venous congestion can be measured by Doppler ultrasound at the bedside through ...

This test is commonly used to search for blood clots and to examine varicose veins. The ultrasounds used during this procedure are: B mode ultrasound – High-frequency sound waves create pictures of ...