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.