The modulation transfer function combines which two qualities into a single assessment? 

Which of the following critical frequency cut-off’s is likely to result in a SPECT image which is too smooth? 

Tomographic spatial resolution (and the Jaszczak phantom) should be preformed on SPECT cameras at a minimum of: 

Total combined energy of the two annihilation photons originating from an annihilation reaction is:

An expected reading for a geometry test on a 5 ml syringe was 2.95 mCi. The actual reading is 2.63 mCi. Calculate the correction factor: 

Which of the following attenuation techniques provides the best quality images? 

What is the unit of measurement for current of electrons that flow from the filament to the anode?

A technologist manually sets the photopeak window to include 75% of the counts in the peak for Cs-137. The ULD is set at 722keV and the LLD is set at 605. Determine the percent window: 

In SPECT imaging, the sinogram image is used to look for _________

No acquiring enough stops (angular sampling) during a SPECT acquisition will result in which type of artifact on reconstructed images?