Table 2.
Characteristic | Normal (n = 34) |
Indeterminate (n = 26) |
Abnormal (n = 13) |
---|---|---|---|
Positron Emission Tomography | |||
Total resting myocardial blood flow, mL/min/g | 1.66 ± 0.55 | 1.62 ± 0.55 | 2.11 ± 0.48* |
Total stress myocardial blood flow, mL/min/g | 3.48 ± 0.90 | 2.86 ± 0.82 | 3.32 ± 0.88* |
Myocardial flow reserve, stress/rest ratio | 2.26 ± 0.81 | 1.91 ± 0.56 | 1.63 ± 0.49* |
Echocardiography | |||
Ejection fraction, % | 62.5 ± 4.81 | 64.0 ± 3.75 | 65.4 ± 5.19 |
Left ventricular end-diastolic diameter, mm | 46.0 ± 4.06 | 48.2 ± 5.91 | 45.8 ± 6.33 |
Left atrial end-systolic diameter, mm | 37.7 ± 4.49 | 41.4 ± 5.41 | 43.7 ± 8.27* |
Left atrial end-systolic volume index, ml/m2 | 25.0 ± 6.00 | 38.6 ± 10.9 | 42.5 ± 8.52* |
Relative wall thickness | 0.44 ± 0.10 | 0.44 ± 0.10 | 0.54 ± 0.09* |
LV mass index, g/m2 | 82.3 ± 19.4 | 96.1 ± 26.0 | 107.0 ± 27.5* |
E wave velocity, cm/s | 75.9 ± 21.2 | 74.2 ± 23.7 | 107.1 ± 32.8* |
A wave velocity, cm/s | 73.2 ± 20.7 | 84.7 ± 27.5 | 84.8 ± 28.4* |
Septal e′ velocity, cm/s | 8.18 ± 2.70 | 6.76 ± 3.24 | 5.87 ± 1.35* |
Lateral e′ velocity, cm/s | 10.6 ± 3.17 | 8.13 ± 3.44 | 6.57 ± 1.86* |
Average E/e′ | 8.70 ± 2.55 | 10.9 ± 3.04 | 18.4 ± 7.39* |
TR velocity > 2.8 m/s | 0 | 8 (31%) | 6 (46%)* |
Global left ventricular longitudinal strain, % | 17 ± 2 | 16 ± 4 | 15 ± 3 |
Global left atrial longitudinal strain, % | 31 ± 7 | 25 ± 7 | 24 ± 4* |
Continuous values expressed as mean ± one unit standard deviation.
Strain expressed as absolute value of percentage of longitudinal deformation. Abbreviations: LV: left ventricle; MFR: myocardial flow reserve; TR: tricuspid regurgitation.
p < 0.05 for analysis of variance across diastolic function grades.