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Table 2 LA volume measurements by TTE and CE-MRA

From: Comparison of non-triggered magnetic resonance imaging and echocardiography for the assessment of left atrial volume and morphology

  CE-MRA TTE Bias (LoA) Bias% Pearson r ICC (95% CI)
All patients n = 65
 LA volume, ml (±SD) 106 ± 44 78 ± 26 28 (− 22–77) 30% 0.85a 0.86 (0.77–0.91)a
 LA volume index, ml/m2 (±SD) 51 ± 22 37 ± 13 14 (− 12–39) 32% 0.87a 0.86 (0.77–0.91)a
Sinus Rhythm n = 14
 LA volume, ml (±SD) 88 ± 24 67 ± 16 21 (−22–64) 27% 0.45 0.59 (−0.27–0.87)
 LA volume index, ml/m2 (±SD) 45 ± 15 34 ± 9 11 (−13–35) 28% 0.57a 0.66 (− 0.05–0.89)a
Atrial Fibrillation n = 11
 LA volume, ml (±SD) 125 ± 28 85 ± 23 39 (13–65) 37% 0.88a 0.93 (0.74–0.98)a
 LA volume index, ml/m2 (±SD) 58 ± 13 39 ± 9 19 (4–33) 38% 0.82a 0.87 (0.52–0.97)a
Discordant or unknown rhythm during CE-MRA n = 40
 LA volume, ml (±SD) 107 ± 50 80 ± 29 27 (−28–82) 29% 0.88a 0.87 (0.75–0.93)a
 LA volume index, ml/m2 (±SD) 51 ± 26 38 ± 15 13 (−15–41) 29% 0.90a 0.88 (0.77–0.93)a
  1. Abbreviations; CE-MRA contrast enhanced magnetic resonance imaging, ICC intraclass correlation coefficient, LoA limits of agreement, TTE transthoracic echocardiography
  2. aSignificant at p < 0.05