An increasing number of rheumatologists have access to ultrasound equipment that provide both color and power Doppler modes, which can be used to investigate musculoskeletal and vascular pathologies.

Accurate diagnosis of a PDA requires echocardiography. Echocardiography together with Doppler and color Doppler allows assessment of patency, diameter of the DA (using color Doppler), and direction of ...

We have all heard the change in pitch when an ambulance or police car drives by with its siren blaring. The pitch is higher as the vehicle comes toward you, and shifts to a lower pitch as it goes away ...