To obtain high resolution images of a small organ, gland, or joint, which collimator would be most useful?

A __________ artifact occurs when radioactivity moves out of the field of view during SPECT acquisition.

As collimator resolution increases, sensitivity __________.

For a parallel-hole collimator, the best resolution is at __________.

When a scintillation crystal in a gamma camera is cracked, the dark edges around the crack is due to __________.

Which of the following is the value that divides the data set into two equal parts?

Which of the following is most affected by patient motion?

In SPECT imaging, which of the following image characteristics degrades contrast?

Analog scintillation cameras produce a signal in which voltage changes with time and requires a(n) __________ to convert the analog signal to the digital signal, needed by the computer.

___________ indicates how long scintillation photons are released after a radiation interaction.