Table 4 Preliminary cut-off points for identifying residual lesions.

From: Criteria for identifying residual tumours after neoadjuvant chemotherapy of breast cancers: a magnetic resonance imaging study

  

Cut-off

Sensitivity

Specificity

Accuracy

PPV

NPV

HR-HER2-

Early size (cm)

0.2

94.6

73.2

85.6

82.8

90.9

Late size (cm)

0.4

96.4

73.2

86.6

83.1

93.8

Early SER

1.3

96.4

70.7

85.6

81.8

93.5

Late SER

0.8

100.0

7.3

60.8

59.6

100.0

HR-HER2 + 

Early size (cm)

0.1

92.9

54.8

66.7

48.1

94.4

Late size (cm)

0.4

92.9

61.3

71.1

52.0

95.0

Early SER

1.3

92.9

51.6

64.4

46.4

94.1

Late SER

1.5

92.9

58.1

68.9

50.0

94.7

  1. PPV positive predictive value, NPV negative predictive value, HR hormone receptor, HER2 human epidermal growth factor receptor 2, SER lesion-to-background parenchymal signal enhancement ratio.
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