TABLE 4.
Parameter difference between aortic regions.
| Rest | Dobutamine | |
|---|---|---|
| Peak Vavg (m/s) | ||
| Ascending aorta | 0.70 ± 0.11°° | 1.17 ± 0.26 |
| Aortic arch | 0.66 ± 0.12°°° | 1.02 ± 0.20°° |
| Descending aorta | 0.87 ± 0.16 | 1.32 ± 0.25 |
| Thoracic aorta | 0.74 ± 0.11 | 1.17 ± 0.22 |
| Peak Vmax (m/s) | ||
| Ascending aorta | 1.24 ± 0.11••• | 1.98 ± 0.21••• |
| Aortic arch | 0.96 ± 0.16°°*** | 1.46 ± 0.29°°*** |
| Descending aorta | 1.20 ± 0.19 | 1.75 ± 0.31 |
| Thoracic aorta | 1.31 ± 0.13 | 2.00 ± 0.25 |
| Peak TKEtotal (mJ) | ||
| Ascending aorta | 1.47 ± 0.50••• *** | 4.09 ± 1.48••• *** |
| Arcus aorta | 0.36 ± 0.12°°°*** | 0.88 ± 0.26°°*** |
| Descending aorta | 1.16 ± 0.42*** | 3.41 ± 1.54*** |
| Thoracic aorta | 2.86 ± 0.67 | 7.98 ± 2.20 |
| Peak TKEmax (J/m3) | ||
| Ascending aorta | 171.4 ± 33.7•••° | 316.7 ± 73.4•• |
| Aortic arch | 121.9 ± 43.5*** | 200.9 ± 59.8*** |
| Descending aorta | 135.3 ± 35.7* | 253.5 ± 80.6* |
| Thoracic aorta | 176.3 ± 32.6 | 334.2 ± 69.0 |
| Peak TKEmed (J/m3) | ||
| Ascending aorta | 43.6 ± 12.6 | 112.8 ± 30.7 |
| Aortic arch | 38.1 ± 16.5 | 82.8 ± 25.8 |
| Descending aorta | 34.5 ± 10.9 | 91.4 ± 34.1 |
| Thoracic aorta | 35.8 ± 7.2 | 93.2 ± 23.5 |
Results of post-hoc analysis between aortic regions for hemodynamic parameters. Significant difference between aortic regions is indicated by: *p < 0.05 vs. TAo, **p < 0.01 vs. TAo, ***p < 0.001 vs. TAo, • p < 0.05 vs. AoA, •• p < 0.01 vs. AoA, ••• p < 0.001 vs. AoA, ° p < 0.05 vs. DAo, p < 0.01 vs. DAo, p < 0.001 vs. DAo.