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Table 3 Measurement of agreement between 2DPC and 4D flow level 1–6

From: Quantitative evaluation of aortic valve regurgitation in 4D flow cardiac magnetic resonance: at which level should we measure?

 

Measurement agreement ICC (95% CI)

Limits of agreement

Level 1 (below AV)

0.951 (0.895 – 0.977)

− 12.9 – 6.6%

Level 2 (AV)

0.957 (0.909 – 0.980)

− 14.5 – 3.8%

Level 3 (Sinus)

0.985 (0.968 – 0.993)

− 6.6 – 4.1%

Level 4 (ST)

0.952 (0.899 – 0.978)

− 12.1 – 6.7%

Level 5 (PA)

0.994 (0.989 – 0.998)

− 5.2 – 2.1%

Level 6 (below BCT)

0.907 (0.807 – 0.957)

− 23.7 – 2.7%

  1. Measurement agreement was best at level 5, the level of the pulmonary arteries
  2. AV Aortic valve, ST Sinotubular junction, PA Pulmonary arteries, BCT Brachiocephalic trunk