2.
心梗小鼠左室舒张功能的超声心动图参数
Echocardiographic parameters of the left ventricular diastolic function in mice with MI (Mean±SD)
| Category | Sham group (n=10) | MI group (n=15) |
| *P < 0.05 vs sham group. | ||
| Mitral valve PWD | ||
| E peak rate (mm/s) | 727.65±35.43 | 638.62±51.22* |
| A peak rate (mm/s) | 445.25±26.48 | 216.45±53.09* |
| IVR/ms | 14.54±1.77 | 18.53±1.45* |
| IVC/ms | 10.67±0.97 | 14.83±2.71* |
| ET/ms | 53.71±1.90 | 49.78±0.82 |
| Tei | 0.47±0.05 | 0.67±0.06* |
| Pulmonary venous PWD | ||
| PVS (mm/s) | 277.74±35.47 | 215.05±52.90 |
| PVD (mm/s) | 645.78±42.66 | 430.98±68.85* |
| PVA (mm/s) | 111.62±20.24 | 94.29±8.56* |
| PVS/PVD ratios | 0.4 ±0.06 | 0.79±0.32* |
| Mitral annulus TDI | ||
| E' peak rate (mm/s) | 38.71±2.25 | 27.87±1.37* |
| A' peak rate (mm/s) | 31.24±1.92 | 28.58±2.63 |
| S peak rate (mm/s) | 30.81±3.48 | 24.21±1.35* |
| E'/A' ratios | 1.26±0.08 | 0.97±0.12* |