Table 3.
CMR-FT parameters of ACM population and comparison of patients without and with cardiovascular events during follow-up.
All (n = 89) | No CE (n = 59) | CE (n = 30) | P-value | |
---|---|---|---|---|
Dyssynchrony parameters | ||||
LVLD (ms) | 69.88 ± 28.44 | 64.23 ± 25.51 | 80.98 ± 30.98 | 0.012 |
LVCD (ms) | 69.08 ± 31.94 | 66.33 ± 26.62 | 74.40 ± 40.30 | 0.264 |
LVRD (ms) | 79.89 ± 46.27 | 74.04 ± 29.21 | 91.40 ± 67.71 | 0.094 |
RVCD (ms) | 123.86 ± 88.24 | 116.75 ± 83.54 | 137.85 ± 96.78 | 0.284 |
RVRD (ms) | 109.57 ± 84.39 | 104.83 ± 77.16 | 118.89 ± 97.82 | 0.460 |
LV longitudinal strain | ||||
Global (%) | −12.01 ± 3.15 | −12.61 ± 3.18 | −10.82 ± 2.77 | 0.010 |
Basal (%) | −8.80 ± 3.85 | −9.05 ± 4.48 | −8.29 ± 2.09 | 0.381 |
Mid (%) | −12.06 ± 5.26 | −12.85 ± 5.70 | −10.50 ± 3.89 | 0.015 |
Apical (%) | −11.44 ± 4.24 | −12.10 ± 4.40 | −10.14 ± 3.64 | 0.021 |
LV circumferential strain | ||||
Global (%) | −12.63 ± 2.74 | −13.04 ± 2.83 | −11.81 ± 2.40 | 0.044 |
Basal (%) | −11.72 ± 4.79 | −12.16 ± 3.90 | −10.86 ± 6.17 | 0.227 |
Mid (%) | −13.42 ± 4.39 | −14.08 ± 4.30 | −12.13 ± 4.36 | 0.048 |
Apical (%) | −13.29 ± 5.31 | −13.53 ± 5.35 | −12.82 ± 5.27 | 0.558 |
LV radial strain | ||||
Global (%) | 32.00 ± 9.61 | 32.90 ± 9.28 | 30.25 ± 10.15 | 0.221 |
Basal (%) | 32.23 ± 11.97 | 33.70 ± 12.60 | 29.33 ± 10.21 | 0.104 |
Mid (%) | 25.34 ± 10.16 | 26.21 ± 9.50 | 23.64 ± 11.31 | 0.262 |
Apical (%) | 32.11 ± 13.57 | 33.73 ± 14.15 | 28.93 ± 11.95 | 0.099 |
RV strain parameters | ||||
GLS (%) | −11.78 ± 6.38 | −11.78 ± 6.97 | −11.77 ± 5.15 | 0.993 |
GCS (%) | −4.54 ± 4.52 | −4.79 ± 4.35 | −4.05 ± 4.89 | 0.612 |
GRS (%) | 9.97 ± 6.39 | 10.42 ± 6.36 | 9.09 ± 6.48 | 0.284 |
Data were presented as means ± standard deviations or median values with interquartile range in parentheses.
ACM, arrhythmogenic cardiomyopathy; CE, cardiovascular events; CMR, cardiac magnetic resonance; FT, feature tracking; LV, left ventricular; RV, right ventricular; LD, longitudinal dyssynchrony; CD, circumferential dyssynchrony; RD, radial dyssynchrony; GCS, global circumferential strain; GLS, global longitudinal strain; GRS, global radial strain.