Background
Methods
Study population
Image acquisition
Diffusion tensor analysis
Image analysis
Statistical analysis
Results
Study population
Baseline Characteristics |
N = 43 |
---|---|
Age: (years &range) | 45 (24–74) |
Male subjects | 26 (60%) |
RR interval (ms) | 960 ± 160 |
BSA: (m2) | 1.88 ± 0.20 |
BMI: (kg/m2) | 24.5 ± 3.0 |
LVEDV: (mL) | 146 ± 33 |
LVESV: (mL) | 47 ± 13 |
LVM: (g) | 128 ± 32 |
MWTd (mm) | 9 ± 1.2 |
LVEF: (%) | 68 ± 6 |
Global and regional cDTI results
Fractional Anisotropy |
N = 43 |
p value |
---|---|---|
Systolic: | ANOVA: F = 5.21, p = 0.003 | |
Lateral | 0.46 ± 0.05 | Reference |
Anterior | 0.48 ± 0.05 |
p = 0.017 |
Inferior | 0.48 ± 0.06 |
p = 0.007 |
Septal | 0.46 ± 0.07 |
p = 1.0 |
Diastolic: | ANOVA: F = 16.0, p <0.001 | |
Lateral | 0.52 ± 0.07 | Reference |
Anterior | 0.59 ± 0.05 |
p < 0.001 |
Inferior | 0.59 ± 0.05 |
p < 0.001 |
Septal | 0.54 ± 0.09 |
p = 0.004 |
Mean Diffusivity (×103 mm2/s) |
N = 43 |
p value |
---|---|---|
Systolic: | ANOVA: F = 1.50, p = 0.22 | |
Lateral | 0.95 ± 0.16 | |
Anterior | 0.90 ± 0.18 | |
Inferior | 0.93 ± 0.18 | |
Septal | 0.94 ± 0.18 | |
Diastolic: | ANOVA: F = 14.3, p <0.001 | |
Lateral | 1.20 ± 0.24 | Reference |
Anterior | 0.99 ± 0.15 |
p <0.001 |
Inferior | 1.05 ± 0.18 |
p = 0.01 |
Septal | 1.20 ± 0.25 |
p = 1.0 |
Helix Angle Gradient(°/%) |
N = 43 |
p value |
---|---|---|
Systolic: | ANOVA: F = 24.0, p < 0.001 | |
Lateral | 0.90 ± 0.16 | Reference |
Anterior | 0.98 ± 0.21 |
p = 0.13 |
Inferior | 0.76 ± 0.15 |
p < 0.001 |
Septal | 1.0 ± 0.12 |
P = 0.007 |
Diastolic: | ANOVA: F = 51.9, p < 0.001 | |
Lateral | 0.58 ± 0.13 | Reference |
Anterior | 0.72 ± 0.12 |
p <0.001 |
Inferior | 0.61 ± 0.13 |
p =1.0 |
Septal | 0.83 ± 0.14 |
p <0.001 |
Secondary Eigenvector Angle (°) |
N = 43 |
p value |
---|---|---|
Systolic: | ANOVA: F = 5.07, p = 0.02 | |
Lateral | 55 ± 8 | Reference |
Anterior | 51 ± 8 |
p = 0.019 |
Inferior | 55 ± 7 |
p = 1.0 |
Septal | 55 ± 10 |
p = 1.0 |
Diastolic: | ANOVA: F = 16.8, p < 0.001 | |
Lateral | 24 ± 8 | Reference |
Anterior | 22 ± 8 |
p =1.0 |
Inferior | 30 ± 7 |
p <0.001 |
Septal | 30 ± 10 |
p =0.002 |
Mobility: | ANOVA: F = 4.64, p = 0.004 | |
Lateral | 31 ± 11 | Reference |
Anterior | 29 ± 11 |
p = 0.43 |
Inferior | 24 ± 10 |
p = 0.009 |
Septal | 26 ± 14 |
p = 0.11 |