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Table 5 Inter-reader agreement and concordance correlation coefficient for ADC measurements in reading 1 and reading 2

From: Limited role of DWI with apparent diffusion coefficient mapping in breast lesions presenting as non-mass enhancement on dynamic contrast-enhanced MRI

ADC metric

Reading 1

Reading 2

CCC (95% confidence interval)

Strength of agreement

CCC (95% confidence interval)

Strength of agreement

Wtu ADC max

0.35 (0.15, 0.55)

Fair

0.04 (− 0.01, 0.09)

Slight

Wtu ADC mean

0.34 (0.15, 0.54)

Fair

0.04 (0.32, 0.69)

Slight

Wtu ADC min

0.30 (0.10, 0.49)

Slight

0.09 (0.15, 0.32)

Slight

Dptu ADC max

0.141 (0.09, 0.38)

Slight

0.42 (0.23, 0.62)

Moderate

Dptu ADC mean

0.11 (− 0.11, 0.37)

Slight

0.32 (0.11, 0.53)

Fair

Dptu ADC min

0.13 (0.03, 0.19)

Slight

0.03 (− 0.13, 0.19)

Slight

Ptu ADC mean

− 0.01 (− 0.24, 0.22)

Slight

0.04 (− 0.09, 0.18)

Slight

  1. Wtu whole tumor, Dptu darkest part of the tumor, Ptu point tumor, max maximum, min minimum
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Breast Cancer Research

ISSN: 1465-542X

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