Table 4 Results of the shear wave imaging study
From: Local myocardial stiffness variations identified by high frame rate shear wave echocardiography
Category | 1 = Normal volunteers N = 10 | 2 = HCM patients without septal reduction N = 10 | 3 = HCM patients post septal reduction N = 10 | ANOVA p 2 vs 3 | ||
|---|---|---|---|---|---|---|
| Â | ANOVA p 1 vs 2 | Â | ANOVA p 1 vs 3 | |||
Color TDI frame rate [Hz] | 528 ± 22 | 530 ± 25 | 0.9 | 514 ± 17 | 0.4 | 0.3 |
Aortic shear wave velocity in non-ablated segments [m/s] | 3.6 ± 0.4 | 5.3 ± 1 | < 0.0001 | 5.3 ± 0.7 | < 0.0001 | 0.9 |
Slope/velocity shift present in any layer | 0 | 0 | 8 | Â | ||