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The NM procedure that requires photons created during annihilation reactions is:

The CT number of air should not deviate by more than ___ Hounsfield units from -1000.

The slice position deviation in MR scanners should not exceed ____ mm.

The ability of the MR system to show the separation of small objects is the:

After an annual inspection, the report indicates that the radiologist is not board certified in mammography, this constitutes a _________ finding.

For ACR CT accreditation, the Water CT Number and Standard Deviation (Noise) should be evaluated by the CT technologist

After an annual inspection, the report indicates that the radiologist is not board certified in mammography, this constitutes a _________ finding.

The slice position deviation in MR scanners should not exceed ____ mm.

It is important to not only evaluate the equipment used in a SPECT system but also to evaluate each patient study for artifacts and errors. The sinogram of a selected tomographic slice is a summed image of all the projection data. It is useful in detecting ____, which can degrade the quality o the SPECT study.

A change in the strength of the main magnetic field can be caused by: