Contrast agents can be administered in several ways, depending on the type of imaging and the area being examined:
Intravenous (IV) injection: Common for CT and MRI scans to quickly deliver the agent into the bloodstream. Oral administration: Used for imaging the digestive tract, where the patient drinks a contrast solution. Rectal administration: Occasionally used for imaging the lower gastrointestinal tract. Intra-arterial injection: Used in angiography to visualize blood vessels.