Table 3.
Peak regional and global strain and strain rate of rats at 6 weeks measured through STE. Views were detected from the parasternal short axis at the mid papillary muscle level
| Strain | Strain Rate | |||||||
|---|---|---|---|---|---|---|---|---|
| Control Rats | Model Rats | P | Control Rats | Model Rats | P | |||
| (n = 8) | (n = 8) | (n = 8) | (n = 8) | |||||
| Diastolic | Radial | AFW | −36.04 ± 12.68 | −9.05 ± 10.10 | <0.001# | −11.06 ± 4.14 | −7.63 ± 1.99 | 0.1144 |
| LW | −24.86 ± 4.25 | −10.16 ± 7.58 | <0.001# | −9.62 ± 2.87 | −5.79 ± 1.37 | 0.0087# | ||
| PW | −25.03 ± 11.78 | −10.39 ± 9.79 | 0.0076# | −8.37 ± 3.04 | −5.58 ± 1.77 | 0.0299* | ||
| IFW | −29.12 ± 13.97 | −11.21 ± 12.85 | 0.0126* | −8.52 ± 2.03 | −6.64 ± 1.78 | 0.0453* | ||
| PS | −22.88 ± 12.69 | −6.24 ± 4.63 | 0.0031# | 7.07 ± 2.99 | −5.78 ± 2.03 | 0.2376 | ||
| AS | −21.64 ± 13.99 | −4.24 ± 4.75 | 0.0209* | −6.89 ± 2.27 | −7.07 ± 1.71 | 0.7496 | ||
| Average | −26.63 ± 9.04 | −7.05 ± 5.97 | <0.001# | −9.13 ± 2.51 | −6.62 ± 1.16 | 0.0304* | ||
| Circumferential | AFW | 26.29 ± 12.24 | 1.43 ± 0.99 | <0.001# | 7.64 ± 2.77 | 4.44 ± 2.45 | 0.0417* | |
| LW | 27.35 ± 13.97 | 2.95 ± 2.63 | <0.001# | 7.31 ± 2.73 | 3.14 ± 2.02 | 0.0045# | ||
| PW | 31.07 ± 11.35 | 0.80 ± 0.34 | <0.001# | 8.06 ± 1.71 | 5.36 ± 1.92 | 0.0094# | ||
| IFW | 29.44 ± 19.96 | 0.81 ± 1.04 | <0.001# | 10.53 ± 6.33 | 5.74 ± 2.93 | 0.0789 | ||
| PS | 29.77 ± 19.52 | 0.90 ± 0.46 | 0.0010# | 8.10 ± 2.44 | 8.75 ± 6.02 | 0.7597 | ||
| AS | 21.32 ± 8.25 | 0.66 ± 0.40 | <0.001# | 6.25 ± 2.31 | 5.96 ± 1.80 | 0.9022 | ||
| Average | 29.57 ± 14.35 | 1.25 ± 0.69 | <0.001# | 7.98 ± 2.37 | 5.65 ± 2.55 | 0.1008 | ||
| Systolic | Radial | AFW | 38.72 ± 10.04 | 23.92 ± 9.61 | 0.0537 | 9.79 ± 6.05 | 4.76 ± 1.79 | 0.0407* |
| LW | 26.89 ± 14.94 | 19.44 ± 8.94 | 0.2461 | 7.76 ± 3.56 | 4.04 ± 1.83 | 0.0229* | ||
| PW | 25.87 ± 14.55 | 19.77 ± 10.01 | 0.3456 | 7.15 ± 1.54 | 3.97 ± 1.75 | 0.0012# | ||
| IFW | 24.83 ± 10.11 | 17.33 ± 10.48 | 0.1671 | 8.20 ± 3.16 | 4.30 ± 2.44 | 0.0158* | ||
| PS | 16.91 ± 6.25 | 10.63 ± 8.49 | 0.1144 | 6.93 ± 1.84 | 4.13 ± 2.82 | 0.0211* | ||
| AS | 25.73 ± 19.00 | 19.19 ± 7.47 | 0.3801 | 5.71 ± 2.15 | 4.02 ± 2.33 | 0.1817 | ||
| Average | 26.13 ± 9.75 | 18.12 ± 5.56 | 0.0630 | 8.67 ± 2.59 | 4.23 ± 1.94 | 0.0022# | ||
| Circumferential | AFW | −23.39 ± 8.39 | −15.77 ± 9.22 | 0.1495 | −6.74 ± 2.81 | −4.86 ± 3.78 | 0.3395 | |
| LW | −20.64 ± 6.31 | −10.34 ± 12.62 | 0.0584 | −6.54 ± 2.31 | −2.37 ± 1.29 | 0.0010# | ||
| PW | −21.98 ± 4.79 | −19.57 ± 8.18 | 0.5102 | −7.11 ± 1.41 | −5.26 ± 1.24 | 0.0238* | ||
| IFW | −24.04 ± 7.22 | −21.58 ± 10.30 | 0.3488 | −7.42 ± 2.52 | −5.45 ± 1.62 | 0.1154 | ||
| PS | −23.00 ± 3.23 | −27.95 ± 10.02 | 0.2074 | −8.25 ± 2.92 | −7.68 ± 4.87 | 0.8873 | ||
| AS | −19.84 ± 7.12 | −24.72 ± 8.53 | 0.1340 | −5.61 ± 1.78 | −6.60 ± 3.31 | 0.3478 | ||
| Average | −22.01 ± 3.87 | −19.99 ± 7.67 | 0.5314 | −6.95 ± 1.98 | −5.65 ± 3.18 | 0.4198 | ||
Data are presented as mean ± SD. Abbreviations: AFW anterior free wall, LW lateral wall, PW posterior wall, IFW inferior free wall, PS post septum, AS anterior septum
*Compared to control group, P<0.05; #Compared to control group, P<0.01