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The most common problem affecting gamma cameras, presenting as a focal cold spot, is ___________.

As an image is being acquired, excessive pixel-to-pixel variation can be reduced by ___________.

The unit used in CT to describe tissue attenuation in each voxel is:

Regarding SPECT imaging, an area of increased count density can result in spillover of counts into nearby pixels. This is called: 

For picture archiving communications systems (PACS) to work, patient images must be stored in which format? 

A typical mAs setting for CT may range from: 

Image A Represents which View ?  

What is image D evaluating?  

A sample produces a total of 546,416 counts in 2 minutes. The background is 32 cps. What is the counting rate of the sample in counts per minute? 

The low-atomic-number positron-emitting radionuclides are all created in a ____________.