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Table 2 The inter-reader agreements of imaging features

From: Preoperative subcategorization based on magnetic resonance imaging in intrahepatic cholangiocarcinoma

Imaging Features

κ value

95%CI

p value

Intratumoral hemorrhage

0.789

0.506-1.000

< 0.001

Restricted diffusion

NA

NA

NA

Arterial phase hypoenhancement

0.732

0.511-0.953

< 0.001

Non-rim APHE

0.568

0.350-0.786

< 0.001

Non-peripheral washout

0.783

0.548-1.000

< 0.001

Targetoid appearance in T2

0.871

0.761-0.981

< 0.001

Corona enhancement

0.574

0.405-0.742

< 0.001

Enhancing capsule

0.809

0.629-0.989

< 0.001

Tumor in vein

0.755

0.528-0.982

< 0.001

Rim APHE

0.570

0.388-0.752

< 0.001

Peripheral washout

0.647

0.482-0.812

< 0.001

Delayed enhancement

0.625

0.415-0.835

< 0.001

Targetoid restriction

0.638

0.475-0.800

< 0.001

Intrahepatic duct dilatation

0.802

0.682-0.922

< 0.001

Hepatic capsule retraction

0.605

0.442-0.768

< 0.001

  1. APHE Arterial phase hyperenhancement