Reference left atrial dimensions and volumes by steady state free precession cardiovascular magnetic resonance

Table 6 Predictors of absolute left atrial volume

Univariable analysis: Measurements	Coeff	95%CI	P value	R squared
Longitudinal diameter -4ch [cm]	2.979	2,551,3.406	< 0.001	0.614
Transverse diameter -4ch [cm]	3.435	2.924,3.945	< 0.001	0.597
Area -4ch [cm²]	3.643	3.230,4.056	< 0.001	0.719
Longitudinal diameter -2ch [cm]	3.080	2.599,3.561	< 0.001	0.604
Transverse diameter -2ch [cm]	3.200	2.774,3.626	< 0.001	0.678
Area -2ch [cm²]	3.325	2.941,3.710	< 0.001	0.711
AP diameter -3ch [cm]	2.688	2.135,3.240	< 0.001	0.436
Area -3ch [cm²]	3.925	3.499,4.352	< 0.001	0.753
Longitudinal diameter/BSA -4ch [cm/m²]	3.992	3.159,4.824	< 0.001	0.428
Transverse diameter/BSA -4ch [cm/m²]	4.574	3.597,5.551	< 0.001	0.417
Area/BSA -4ch [cm²/m²]	5.641	4.821,6.462	< 0.001	0.608
Longitudinal diameter/BSA -2ch [cm/m²]	4.059	3.114,5.004	< 0.001	0.405
Transverse diameter/BSA -2ch [cm/m²]	4.408	3.524,5.291	< 0.001	0.480
Area/BSA -2ch [cm²/m²]	5.413	4.667,6.159	< 0.001	0.633
AP diameter/BSA -3ch [cm/m²]	3.754	2.770,4.739	< 0.001	0.320
Area/BSA -3ch [cm²/m²]	6.502	5.649,7.356	< 0.001	0.676
Multivariable analysis: Absolute measurements
Area -3ch [cm²]	1.896	0.957, 2.836	< 0.001	0.902
Area -4ch [cm²]	1.119	0.154, 2.085	0.024
AP diameter -3ch [cm]	-1.653	-2.492, -0.814	< 0.001
Transverse diameter -2ch [cm]	1.080	0.463, 1.696	0.001
Transverse diameter -4ch [cm]	0.925	0.147, 1.703	0.02
Constant	3.314	3.052, 3.577

AP - anteroposterior; 4ch - 4-chamber view; 2ch - 2-chamber view; 3ch - 3 chamber view; BSA - body surface area

ISSN: 1532-429X