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Table 2 Left Atrial Volume Measurements Comparing Echocardiography, Invasive 3D-CARTO and CMR

From: Left atrial volume assessment in atrial fibrillation using multimodality imaging: a comparison of echocardiography, invasive three dimensional CARTO and cardiac magnetic resonance imaging

Imaging Modality

Absolute Difference

Percent Difference

ICC

Pearson Correlation

R2

MRI-AL vs MSM

11.48 +/- 20.45*

11.6 +/- 19.95*

0.80*

0.84*

0.71*

3D-CARTO vs MSM

-6.42 +/- 20.80*

-4.92 +/- 17.00*

0.77*

0.79*

0.62*

TTE-AL vs MSM

-23.84 +/- 26.68*

-17.44 +/- 21.08*

0.48*

0.65*

0.42*

  1. Atrial volume measurements are in mL. Values are presented as means and SD. MSM=multiple slice method. AL=area length method. TTE=transthoracic echocardiography. ICC=intraclass correlation coefficient. R2=coefficient of determination. *= p-value <0.005.