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Table 6 Agreement between biopsy (reference) and MRI DWI/ADC findings

From: Role of MRI in diagnosis of prostate cancer and correlation of results with transrectal ultrasound guided biopsy “TRUS”

MRI DCW/ADC Biopsy Total
Malignant Benign
Restricted 19 (63.3%) TP 1 (3.3%) FP 1 (3.3%)
Free 3 (10.0%) FN 7 (23.3%) TN 10 (33.3%)
Total 22 (73.3%) 8 (26.7%) 30 (100.0%)
Kappa (95% CI) 0.684 (0.402–0.967) P  < 0.001*
  1. Percentages are from the total (30), TP: True positive, TN: True negative, FP: False positive, FN: False negative
  2. Bold values are referred to as significant value and better results than other filtering methods