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Table 3 Intra- and interobserver agreement

From: Tricuspid flow and regurgitation in congenital heart disease and pulmonary hypertension: comparison of 4D flow cardiovascular magnetic resonance and echocardiography

 

Mean Δ

p-value1

ICC

p-value2

Intraobserver

 Forward flow (ml)

1.08 ± 4.58

0.911

0.963

<0.001

 Stroke volume (ml)

−1.51 ± 5.80

0.329

0.981

<0.001

 Regurgitance (%)

−1.07 ± 4.58

0.378

0.910

<0.001

Interobserver

 Forward flow (ml)

1.44 ± 9.26

0.370

0.911

<0.001

 Stroke volume (ml)

2.12 ± 8.86

0.556

0.935

<0.001

 Regurgitance (%)

−1.1 ± 3.5

0.242

0.968

<0.001

  1. Mean difference (Δ) between repeated measures and significance were tested with a paired Student T-test and agreement using intra-class correlation coefficient (ICC)
  2. 1p-value using paired Student's T test
  3. 2p-value for intra-class correlation coefficient (ICC)