The decreased pressure in regions of high flow speed is known as _____.
Higher operating frequencies produce larger Doppler shifts.
Higher operating frequencies produce larger Doppler shifts.
Contrast agents produce echoes because the impedance of the…
Contrast agents produce echoes because the impedance of the suspended particles is similar to the suspending medium.
Which of the following is the most consistent predictor of t…
Which of the following is the most consistent predictor of turbulent flow?
The Reynolds number predicts _________.
The Reynolds number predicts _________.
A non steady flow with acceleration and deceleration over th…
A non steady flow with acceleration and deceleration over the cardiac cycle is termed_________.
When the direction of flow and the direction of the sound be…
When the direction of flow and the direction of the sound beam is 90 degree there will be no color in the vessel due to:
Venous pressure in the lower extremities is greater when ere…
Venous pressure in the lower extremities is greater when erect due to ______.
Axial resolution is determined by ____ and lateral resolutio…
Axial resolution is determined by ____ and lateral resolution is determined by ____.
Power Doppler imaging displays the signal’s :
Power Doppler imaging displays the signal’s :