Table 3.

Echocardiographic and cardiac MRI parameters of study participants based on ECV.

Characteristic	ECV ≤ 0.44 (n = 12)	ECV > 0.44 (n = 12)	p Value
Echocardiographic Measures
TRV, m/s	2.5 ± 0.3	2.5 ± 0.7	0.96
E/A ratio	2.0 ± 0.60.6	1.8 ± 0.6	0.30
Lateral e′ (cm/s)	14 ± 4	15 ± 4	0.33
Lateral E/e′ ratio	7 ± 2	8 ± 3	0.21
Septal e′(cm/s)	10 ± 2	11 ± 1	0.21
Septal E/e′ ratio	9 ± 2	9 ± 2	0.85
Lateral a’ (cm/s)	8 ± 2	7 ± 2	0.64
Septal a’ (cm/s)	8 ± 2	7 ± 2	0.69
Heart rate	76 ± 12	77 ± 13	0.82
Systolic blood pressure	126 ± 12	121 ± 9	0.33
Distolic blood pressure	65 ± 9	60 ± 8	0.19
Atrial end diastolic volume(mL/m2)	30 ± 10	29 ± 14	0.85
Atrial end systolic volume (mL/m2)	70 ± 18	62 ± 32	0.40
Atrial ejection fraction (%)	60 ± 7	49 ± 11	0.02
Atrial global longitudinal strain (%)	32 ± 8	26 ± 9	0.08
Atrial fractional area change (%)	44 ± 7	37 ± 9	0.07
Atrial reservoir strain (%)	40 ± 7	33 ± 10	0.04
Atrial conduit strain	31 ± 7	26 ± 8	0.17
Atrial pump strain	9 ± 4	7 ± 2	0.17
Atrial positive strain rate	1.3 ± 0.2	1.0 ± 0.3	0.01
Atrial early negative strain rate	−1.4 ± 0.5	−1.2 ± 0.4	0.45
Atrial late negative strain rate	−0.8 ± 0.2	−0.7 ± 0.4	0.56
Left atrial stiffness	0.18 ± 0.05	0.26 ± 0.10	0.03
Cardiac MRI Measures
LAVi, mL/m2	50 ± 13	55 ± 12	0.39
LVEDVi, mL/m2	101 ± 21	119 ± 22	0.06
LVESVi, mL/m2	38 ± 10	48 ± 15	0.08
LVSVi, mL/m2	61 ± 13	71 ± 12	0.08
LVEF, %	62 ± 4	60 ± 6	0.31
RV cardiac index, L/min per m2	62 ± 15	67 ± 20	0.50
RVEDVi, mL/m2	105 ± 23	119 ± 28	0.18
RVEDVi, mL/m2	105 ± 23	119 ± 28	0.18
RVESVi, mL/m2	43 ± 4	52 ± 5	0.15
RVSVi, mL/m2	62 ± 12	68 ± 13	0.31
RVEF, %	59 ± 5	57 ± 5	0.25
LV cardiac index, L/min per m2	4.6 ± 1.0	5.3 ± 1.4	0.18
RV cardiac index, L/min per m2	4.6 ± 1.0	4.7 ± 2.0	0.84