Table 2.
Left Ventricular Mechanical Parameters in Patients With and Without Fibrosis
| Variables | LGE Positive (N=109) | LGE Negative (N=130) | P Value |
|---|---|---|---|
| GCS, % | −9.2±4.4 | −9.0±4.1 | 0.804 |
| SSRC (1/s) | −0.50±0.23 | −0.52±0.24 | 0.532 |
| DSRC (1/s) | 0.47±0.22 | 0.53±0.28 | 0.058 |
| GLS, % | −8.7±4.1 | −8.6±4.0 | 0.731 |
| SSRL (1/s) | −0.46±0.19 | −0.50±0.20 | 0.999 |
| DSRL (1/s) | −0.46±0.19 | −0.49±0.19 | 0.112 |
| GRS, % | 13.0±8.0 | 12.4±7.3 | 0.606 |
| SSRR (1/s) | 0.68±0.35 | 0.67±0.38 | 0.952 |
| DSRR (1/s) | −0.65±0.39 | −0.65±0.50 | 0.932 |
| Basal systolic rotation, ° | |||
| Net clockwise | −1.4±1.0 | −1.6±1.2 | 0.161 |
| Magnitude | −1.2±1.5 | −1.4±1.5 | 0.170 |
| Apical systolic rotation, ° | |||
| Net counterclockwise | 1.6±2.9 | 1.2±2.7 | 0.074 |
| Magnitude | 1.7±3.0 | 1.2±2.9 | 0.249 |
| Twist, ° | 2.9±2.8 | 2.8±2.4 | 0.607 |
| Twist per length, °/cm | 0.44±0.4 | 0.41±0.4 | 0.649 |
| Torsion, °s−1 | 1.43±1.1 | 1.31±0.9 | 0.374 |
DSRc indicates circumferential diastolic strain rate; DSRL, longitudinal diastolic strain rate; DSRR, radial diastolic strain rate; GCS, global circumferential strain; GLS, global longitudinal strain; GRS, global radial strain; LGE, late gadolinium enhancement; SSRC, circumferential systolic strain rate; SSRL, longitudinal systolic strain rate; and SSRR, radial systolic strain rate.
*
Significant value (P<0.05).