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

What is used as the reference material for CT number calibrations?

Which term refers to the ability of a CT scanner to yeild the same CT number regardless of location o the ROI within a homogenous object?

What is used as the reference material for CT number calibrations?

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

Impurities found in radiopharmaceutical preparations are placed in all of the following categories EXCEPT:

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

Impurities found in radiopharmaceutical preparations are placed in all of the following categories EXCEPT:

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