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Table 6 Diagnostic accuracy TCCS

From: Prehospital stroke diagnostics based on neurological examination and transcranial ultrasound

  Standard stroke imaginga Total
Occlusion No occlusion
MCA mainstem and ICA     
  Preclinical TCCS Occlusion 11 1b 12
No occlusion 3c 71 74
  Total   14 72 86
MCA occlusion     
  Preclinical TCCS Occlusion 9 1b 10
No occlusion 1d 75 76
  Total   10 76 86
  1. aCTA, MRA, and CCT according to diagnostic pathway in stroke unite; bmassive intracerebral hemorrhage (ICH) described as distal MCA occlusion; cno ACA imaged and therefore 2 ICA occlusions or >80% stenosis with cross-filling missed; dcontrast through filter, and PCA described instead of MCA occlusion. CTA, computed tomography angiography; MRA, magnetic resonance angiography; CCT, cerebral computed tomography; ACA, anterior cerebral artery; ICA, internal carotid artery; MCA, middle cerebral artery; PCA, posterior cerebral artery.