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Table 6 Predictors of right atrial volumes

From: Reference right atrial dimensions and volume estimation by steady state free precession cardiovascular magnetic resonance

Univariate analysis: Coeff 95%CI p value r squared
4-chamber longitudinal diameter (cm) 48.4 42.7,54.1 <0.001 0.703
4-chamber transverse diameter (cm) 49.0 38.7,59.3 <0.001 0.428
4-chamber area (cm2) 6.72 6.0, 7.4 <0.001 0.752
2-chamber longitudinal diameter (cm) 42.7 35.1,50.3 <0.001 0.556
2-chamber transverse diameter (cm) 31.9 26.5,37.4 <0.001 0.573
2-chamber area (cm2) 4.6 4.2, 5.1 <0.001 0.806
4-chamber longitudinal diameter indexed (cm/m2) 63.7 52.2, 75.1 <0.001 0.508
4-chamber transverse diameter indexed (cm/m2) 77.1 58.6, 95.7 <0.001 0.365
4-chamber area indexed (cm2/m2) 11.1 9.7, 12.4 <0.001 0.698
2-chamber longitudinal diameter indexed (cm/m2) 66.4 52.4, 80.4 <0.001 0.470
2-chamber transverse diameter indexed (cm/m2) 51.4 41.4, 61.3 <0.001 0.512
2-chamber area indexed (cm2/m2) 7.8 7.0, 8.6 <0.001 0.772
Multivariate analysis: non-indexed measurements Coeff 95%CI p value r squared
2-chamber area (cm2) 3.1 2.6, 3.6 <0.001 0.895
4-chamber area (cm2) 3.4 2.6, 4.1 <0.001  
Constant −44.4