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Table 4 Demonstrates interobserver agreement regarding the CEI and lesion to background contrast ratio on CE-FLAIR and CE-T1WI among studied cases

From: Contrast enhanced FLAIR versus contrast enhanced T1W images in evaluation of intraparenchymal brain lesions

  1st observer
n = 61
2nd observer
n = 61
ICC 95% CI
Contrast enhancement index (CEI) 88 (0.5–651) 83.0 (0.5–651.0) 0.959 0.933–0.975
Lesion to background contrast ratio on CE-FLAIR images 0.40 (0.02–1.89) 0.428 (0.03–1.89) 0.917 0.865–0.949
Lesion to background contrast ratio on CE-T1WI 0.168 (0.01–0.81) 0.177 (0.02–0.81) 0.890 0.823–0.932
  1. ICC Interclass correlation, CI Confidence interval