Indications for CT without contrast

Common indications for CT without contrast include:

  • Suspected stroke within the first 3 hours of symptom onset;
  • Closed head injury;
  • Diffuse lung disease;
  • Chronic dyspnea;
  • Soft-tissue swelling,
  • infection, or trauma of   the   extremities;
  • Suspected kidney stone;   and
  • Suspected spinal trauma.

Indications for CT with contrast

Contrast-enhanced CT is indicated in the following common scenarios:

  • Acute appendicitis,
  • Cancer staging,
  • Diverticulitis,
  • Suspected complications of inflammatory bowel disease,
  • Pancreatitis,
  • Suspected pulmonary embolism.
print