Contrast Media in Computed Tomography (CT)

What are contrast materials and how do they work(Images for Abdomen CT scan with and without contrast with reference are required)?


Which imaging exams use contrast materials in Computed Tomography? 

  • Oral Contrast Materials (esophagus and stomach) (Image with reference is required)
  • Rectal Contrast Materials (colon and rectum) (Image with reference is required)
  • Intravenous Contrast Materials Iodine (brain, arteries and veins of the body, including vessels in the brain, neck, chest, abdomen, pelvis and legs)(Image with reference is required)


Side effects and adverse and allergic reactions

  • Barium Sulfate Contrast Materials
  • diarrhea
  • nausea
  • vomiting
  • constipation


  • Iodine-based Contrast Materials(Image with reference is required)


  • Mild reactions include: (write it as a paragraph)
  • nausea and vomiting
  • headache
  • flushing
  • Moderate reactions include:(write it as a paragraph)
  • severe skin rash or hives
  • high or low blood pressure
  • shortness of breath or difficulty breathing
  • Severe reactions include:(write it as a paragraph)
  • difficulty breathing
  • cardiac arrest
  • swelling of the throat or other parts of the body
  • Contrast-Induced Nephropathy
  • At-Risk Patients 100 words

Pregnancy and contrast materials