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Table 4 Distribution of confidence scores for side-specific presence of infarct/ischemia for each modality (levels 1 and 2 indicate definite and probable presence of ischemia/infarction, levels 5 and 6 indicate definite and probable absence of ischemia/infarction)

From: The predictive value of a targeted posterior fossa multimodal stroke protocol for the diagnosis of acute posterior ischemic stroke

Modality Distribution of each score, n (%)
Confidence Score 1 2 3 4 5 6
NCCT (n = 738) 61 (8.3) 47 (6.4) 40 (5.4) 28 (3.8) 244 (33.1) 318 (43.1)
CTA-SI (n = 738) 74 (10.0) 34 (4.6) 14 (1.9) 16 (2.2) 162 (22.0) 438 (59.3)
CTP (n = 738) 133 (18.0) 18 (2.4) 10 (1.4) 20 (2.7) 87 (11.8) 470 (63.7)
  1. NCCT non-contrast CT, CTA-SI CTA Source Images, CTP CT perfusion