Methods
Study design
3D Echocardiography Acquisition
3D Echocardiography Measurement
MRI Acquisition
MRI Measurement by Landmarks Method (CMRL)
MRI Measurement by Centre of Mass Method (CMRM)
Time to Minimum Volume
Statistical analysis
Results
Patient characteristics
Global Function at Baseline and at Follow-up
Regional Volumes at Baseline and at Follow-up
Basal | Mid | Apical | |
---|---|---|---|
EDV (ml) | r = 0.33* F = 0.97, p = 0.45 | r = 0.15, p = 0.04 F = 0.25* | r = 0.10, p = 0.27 F = 1.04, p = 0.42 |
ESV (ml) | r = 0.06, p = 0.41 F = 0.70, p = 0.03 | r = -0.04, p = 0.64 F = 0.17* | r = -0.02, p = 0.83 F = 0.46* |
EF (%) | r = 0.19, p = 0.01 F = 1.39, p = 0.04 | r = 0.17, p = 0.02 F = 1.69* | r = 0.15, p = 0.09 F = 1.46, p = 0.02 |
RCA | LAD | LCx | |
---|---|---|---|
EDV (ml) | r = -0.10, p = 0.37 F = 0.43* | r = 0.09, p = 0.13 F = 0.43* | r = -0.01, p = 0.92 F = 0.75, p = 0.06 |
ESV (ml) | r = -0.17, p = 0.10 F = 0.49* | r = 0.06, p = 0.36 F = 0.40* | r = -0.23, p = 0.01 F = 0.46* |
EF (%) | r = 0.15, p = 0.17 F = 2.02* | r = 0.17, p = 0.01 F = 1.27* | r = 0.032, p = 0.73 F = 1.67* |
Comparison of Methods
Assessment of Regional Time to Minimum Volume
3DE | CMRL
| P | CMRM
| p | |
---|---|---|---|---|---|
Baseline | 352 ± 61 | -7 ± 89 | r = 0.01, P = 0.86 | -27 ± 96 | r = 0.13, P = 0.11 |
Follow-up | 372 ± 77 | -38 ± 88 | r = 0.22, P = 0.05 | -30 ± 90 | r = 0.22, P = 0.06 |
Change over time | 20 ± 96 | -31 ± 110 | r = 0.15, P = 0.06 | -3 ± 121 | r = 0.12, P = 0.13 |