Table 3.

Atrial and aortic parameters by TTE and CMR at baseline (postpartum) and the third trimester in total population (n = 34)

	TTE			CMR
	Baseline	Third trimester	P	Baseline	Third trimester	P
	(postpartum)			(postpartum)
Atrial parameters
LA diameter (mm)	32 ± 3	38 ± 3*	<0.05	31 ± 3	40 ± 3*	<0.05
LA volume (mL)	31 ± 5	43 ± 6*	<0.05	32 ± 3	48 ± 3*	<0.05
RA volume (mL)	29 ± 3	39 ± 7*	<0.05	29 ± 2	45 ± 4*	<0.05
Aortic diameters
Sinuses (mm)	33 ± 1	33 ± 4	0.81	33 ± 2	32 ± 2	0.81
Sinotubular junction (mm)	30 ± 2	30 ± 4	0.75	32 ± 2	30 ± 2	0.79
Ascending aorta (mm)	31 ± 3	31 ± 3	0.73	31 ± 2	32 ± 3	0.80

Data are expressed as mean ± SD. LA, left atrial; RA, right atrial. *P < 0.05, third trimester vs. baseline within each imaging modality.