Indications

CT is indicated in the investigation of stroke where:

• there is doubt about the diagnosis:
  • gradual onset or progressive neurological signs
  • no clear focal neurological signs
  • no clear history available
    
    
• there is a need to exclude cerebral haemorrhage - the scan must be done within 14 days of onset:
  • current / planned anticoagulant treatment
  • current / planned antiplatelet treatment
  • current / planned thrombolytic treatment
  • planned carotid endarterectomy / angioplasty
    
    
• there is a suspected cerebellar stroke with obstructive hydrocephalus:
  • acute onset of unsteadiness with deterioration