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CT Head
Aka: CT Head, Head CAT Scan, Head CT, CT Brain- See Also
- Indications
- Cerebrovascular Accident
- Differentiate Hemorrhagic CVA from Ischemic CVA
- More sensitive than LP for Intracranial Hemorrhage
- Test Sensitivity diminishes from time of hemorrhagic CVA
- Test Sensitivity 95-100% at 12 hours from onset
- Test Sensitivity 50% at 7 days from onset
- Hemorrhagic CVA is not detectable on CT Head at 2-3 weeks from onset
- Suarez (2006) N Engl J Med 354(4): 387-96
- Brain Tumors (larger than 2-4 mm)
- Enhanced with iodinated Contrast Material
- Hydrocephalus
- Subdural Hematoma (80%)
- Evaluation of traumatic Head Injury
- CT Head in every severe Head Injury
- CT Head in every moderate Head Injury
- See Head Injury CT Indications
- See Head Injury CT Indications in Children
- Cerebrovascular Accident
- References