Contrast Media Precautions
Barium
Contrast Radiography
DSA
Other contrasts investigations definitions
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Sialogram: To show the duct system more clearly, a sialogram may be performed by injecting contrast into the ducts of the salivary glands. Only the submandibular and parotid glands have ducts that can be cannulated. Stones and strictures in the ducts can be identified.
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Sinogram: Contrast examination of sinus tract.
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Ductogram: Imaging of the breast lactiferous duct
Q&A
Which of the following is a feature of an intravenous contrast agent?
- IV contrast is ionic with high osmolarity.
- IV contrast is metabolized by the liver and excreted in the stool.
- IV contrast opacifies structures based on the amount of blood flow.
- IV contrast should be avoided in patients with a GFR of <60 ml/min.
- IV contrast is not a drug and thus does not cause allergic reactions.