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Change in Strain and Strain Rate before and after PTE
| Circ. Strain | Circ. SR | Post. Radial Strain | Post. Radial SR | Septal Radial Strain | Septal Radial SR | ||
|---|---|---|---|---|---|---|---|
| Mean pre-PTE | -21 ± 3 | -1.5 ± 0.3 | 31 ± 8 | 1.8 ± 0.3 | 28 ± 8 | 1.9 ± 0.5 | |
| Mean post-PTE | -23 ± 4 | -1.6 ± 0.2 | 36 ± 11 | 1.9 ± 0.4 | 30 ± 11 | 1.9 ± 0.6 | |
| Relative change | -11% | -5% | 15% | 7% | 5% | -0.8% | |
| P-value | < 0.001 | 0.07 | < 0.001 | 0.04 | 0.1 | 0.8 | |
(Mean ± SD). Circ: circumferential; PTE: pulmonary thromboendarterectomy; Post: posterior; SR: strain rate
