CRES Practice Questions - ACI Certified Radiology Equipment Specialist Exam

Iodinated contrast media used in CT examinations primarily enhance image contrast by which mechanism?

Emitting fluorescent light when struck by X-rays Increasing the atomic number of tissues, thereby increasing X-ray attenuation Reducing patient motion artifacts during scanning Increasing the signal-to-noise ratio of the detector

Correct Answer:

Increasing the atomic number of tissues, thereby increasing X-ray attenuation

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