Table 2.
Myocardial Strain Measurements in RT and Control (Sham-Treated) Rats
| 8 Weeks |
10 Weeks |
||||
|---|---|---|---|---|---|
| Sham-Treated Control | Post-RT | p Value vs.Control | Post-RT | p Value vs. Control | |
| Circumferential | |||||
| Global | −14.1 ± 0.8 | −10.2 ± 0.3 | 0.002 | −8.4 ± 0.2 | <0.001 |
| Base | −14.0 ± 0.9 | −11.2 ± 0.6 | 0.017 | −8.4 ± 0.5 | <0.001 |
| Mid | −15.0 ± 0.7 | −10.8 ± 0.3 | <0.001 | −9.1 ± 0.5 | <0.001 |
| Apex | −12.3 ± 1.2 | −7.8 ± 1.0 | 0.012 | −8.0 ± 0.9 | 0.011 |
| Radial | |||||
| Global | 23.3 ± 1.5 | 21.7 ± 1.5 | 0.270 | 20.9 ± 2.0 | 0.201 |
| Base | 23.7 ± 2.3 | 19.8 ± 0.8 | 0.076 | 16.9 ± 1.8 | 0.018 |
| Mid | 26.6 ± 1.8 | 22.3 ± 1.4 | 0.044 | 22.7 ± 2.3 | 0.107 |
| Apex | 18.6 ± 2.7 | 23.7 ± 4.5 | 0.201 | 24.2 ± 4.0 | 0.143 |
| Longitudinal | |||||
| Global | −15.6 ± 0.7 | −12.3 ± 0.4 | 0.002 | −12.7 ± 0.6 | 0.004 |
| Base | −14.9 ± 1.3 | −13.6 ± 2.0 | 0.271 | −12 ± 1.7 | 0.035 |
| Mid | −16.9 ± 0.5 | −14.3 ± 1.3 | 0.094 | −14 ± 1.0 | 0.059 |
| Apex | −14.9 ± 0.6 | −9.0 ± 1.3 | 0.002 | −12 ± 0.2 | 0.093 |
Values are mean ± SEM.
RT = radiation therapy,