Substantial acoustic energy directed outward from a linear array transducer not along the main axis of the beam is defined as  __________

During inspiration, venous flow in the upper extremities is  ______________________

Turbulent flow can be predicted with all of the following EXCEPT   ________________

A non-steady flow with acceleration and deceleration over the cardiac cycle is termed  _____________________

When employing a tissue-equivalent phantom, the depth at which echoes are no longer detected is an indicator of  ________________

Section thickness artifact is also called _____________.

If is for time (µs), and is for frequency (MHz), This equation (T=1/f) is used to calculate __________

The sound propagation speed used to calibrate range-measuring circuits on diagnostic sonography instruments is ______________

A low frame rate will cause ___________________

To achieve better depth resolution, Use a transducer with ______________________