Thoroughly, and specifically explain your answer in question #15.  (2 pts) (low kVp produces _____ scale contrast; high kVp produces _____ scale contrast)

Which of the following factors affected the density of Penny’s image ?

With Digital imaging, the final brightness and contrast appearance of an image is due to:

Explain why low contrast images provide the most information:  (2 pts)

Starting from thee same point, the sound source is moving toward the east at 12 miles/hour and the receiver is moving toward the west at 10 miles/hour. The Doppler shift is_____.

In Fig. 19.34, in which direction does blood flow through the top vessel?

___________ relates to the tendency of a fluid to resist changes in its velocity.  

An 8 MHz transducer with a pulse of repetition frequency of 5,000 Hz is imaging to a depth of 7 cm. What is the Nyquist frequency?  

In Fig. 19.35, in which direction is blood flowing through the vessel?

The frequency at which aliasing occurs is called