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Table 2 Differences of Histogram Parameters between Lymphomas and IOIPs

From: Differentiation of orbital lymphoma and idiopathic orbital inflammatory pseudotumor: combined diagnostic value of conventional MRI and histogram analysis of ADC maps

Histogram parameter

Orbital lymphoma

IOIP

P value

Mean

0.719 ± 0.216

1.131 ± 0.317

< 0.001

Median

0.686 ± 0.202

1.099 ± 0.332

< 0.001

ADC10

0.463 ± 0.150

0.794 ± 0.244

< 0.001

ADC25

0.562 ± 0.163

0.923 ± 0.275

< 0.001

ADC75

0.832 ± 0.269

1.305 ± 0.384

< 0.001

ADC90

1.005 ± 0.336

1.519 ± 0.430

< 0.001

Skewness

1.314 ± 1.042

0.820 ± 0.737

0.135

Kurtosis

4.959 ± 6.208

1.829 ± 2.923

0.024

  1. Data are presented as mean ± standard deviation. Unit for ADC value is 10−3 mm2/s. ADC n, nth percentile value of cumulative ADC histogram