Department of Medical Physics, Bristol and Weston Health Authority. The volume flow rate of blood in the portal vein was measured using a duplex ultrasound system. The many errors inherent in the ...

Doppler ultrasound ... of the blood flow and velocity that the device displays or records. They can help you diagnose and monitor the condition of your circulation, and compare it with normal ...

In adolescent girls (as in adults) cysts can form as a result of the normal monthly hormone cycle ... an important indicator of a torsed ovary -- the diagnosis can be confirmed by observing a lack of ...