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Table 4 Showed final unenhanced MRI diagnosis by both observers and interobserver agreement

From: Detection of recurrent breast carcinoma using unenhanced breast MRI

  Final unenhanced MRI diagnosis by observer 1 Final unenhanced MRI diagnosis by observer 2 Kappa P
Recurrent breast carcinoma 20 (18.9%) 20 (18.9%) 1.00 < 0.001*
Fat necrosis 32 (30.2%) 32 (30.2%)
Post-operative seroma 46 (43.4%) 46 (43.4%)
Post-operative scar 8 (7.5%) 8 (7.5%)
Normal study 2 (1.8%) 2 (1.8%)   
  1. P probability
  2. *Significance < 0.05
  3. Test used: Kappa