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Table 4 The interobserver variability for radiological features

From: Value of gadoxetic acid-enhanced MRI for microvascular invasion of small hepatocellular carcinoma: a retrospective study

 

Kappa

CI 95%

Non-enhancement

Mosaic architecture

0.763

0.545–0.981

Intralesional fat

0.893

0.777–1.000

Intratumor hemorrhage

0.816

0.569–1.000

Iso/Hyper-intense SI (T1WI)

0.876

0.740–1.000

T2-DW mismatch

0.703

0.390–1.000

Morphology (T2WI)

0.871

0.775–0.966

Enhancement without HBP

AP hyper-enhancement

0.876

0.741–1.000

Washout

0.800

0.657–0.943

Rim enhancement

0.749

0.561–0.936

Capsule enhancement

0.844

0.718–0.970

AP halo sign

0.760

0.582–0.937

HBP

  

HBP high uptake

0.926

0.826–1.000

HBP halo sign

0.857

0.664–1.000

HBP morphology

0.951

0.894–1.000

HBP spicule sign

0.876

0.741–1.000

HBP brush sign

0.858

0.704–1.000

  1. k = 0.00–0.20, poor agreement; k = 0.21–0.40, fair agreement; k = 0.41–0.60, moderate agreement; k = 0.61–0.80, good agreement; k = 0.81–1.00, excellent agreement. T1WI, T1-weighted; AP, arterial phase; T2-DW: T2-weighted and diffusion-weighted imaging; T2WI, T2-weighted; HBP, hepatobiliary phase