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Table 3 Concordance rates of MRI and CAD in 80 invasive cancers

From: Preoperative tumor size measurement in breast cancer patients: which threshold is appropriate on computer-aided detection for breast MRI?

 

Manual measurement on MRI a

CAD b with 30% threshold

CAD with 50% threshold

CAD with 100% threshold

Underestimation

13 (16.2)

12 (15.0)

28 (35.0)

57 (71.2)

Concordance

50 (62.5)

58 (72.5)

43 (53.8)

23 (28.7)

Overestimation

17 (21.3)

10 (12.5)

9 (11.2)

0 (0.0)

Total Number

80 (100.0)

80 (100.0)

80 (100.0)

80 (100.0)

p value†

 

0.213

0.036

<  0.001

  1. * Data are numbers of cancers with percentages in parentheses
  2. † The chi-square test was used to compare the outcomes of CAD with that those of MRI as a reference standard
  3. aMRI magnetic resonance imaging, bCAD computer-aided detection