Table 2.
Healthy subjects: Global and regional peak rotation (°) and global time to peak rotation (ms)*
| Peak apex rotation | Peak mid rotation | |||||
| Segments | Total | Endo | Epi | Total | Endo | Epi |
| IS | 8.7 ± 3.2 | 9.2 ± 3.7 | 8.4 ± 3.1 | 3.5 ± 2.1 | 3.5 ± 2.1 | 3.5 ± 2.1 |
| AS | 12.4 ± 5.5 | 13.5 ± 5.7 | 11.3 ± 5.0 | 6.4 ± 1.8 | 6.8 ± 1.9 | 6.2 ± 1.8 |
| AN | 16.4 ± 7.7 | 17.5 ± 8.2 | 15.9 ± 7.5 | 6.9 ± 2.5 | 7.1 ± 2.6 | 6.6 ± 2.4 |
| AL | 15.7 ± 6.1 | 16.6 ± 6.3 | 15.5 ± 6.1 | 5.5 ± 2.4 | 5.8 ± 2.3 | 5.4 ± 2.4 |
| IL | 9.7 ± 3.9 | 9.8 ± 4.0 | 9.6 ± 3.6 | 4.8 ± 2.1 | 5.0 ± 2.2 | 4.7 ± 2.1 |
| IN | 7.3 ± 3.6 | 7.6 ± 4.1 | 7.4 ± 3.3 | 4.3 ± 1.8 | 4.4 ± 1.7 | 4.3 ± 1.8 |
| Global | 10.5 ± 3.4 | 11.0 ± 3.5 | 10.2 ± 3.3 | 3.8 ± 1.6 | 3.9 ± 1.6 | 3.8 ± 1.6 |
| Global timing | 384 ± 98 | 384 ± 98 | 387 ± 98 | 194 ± 94 | 194 ± 94 | 194 ± 94 |
| Peak base rotation | Peak negative base rotation | |||||
| Segments | Total | Endo | Epi | Total | Endo | Epi |
| IS | 2.3 ± 2.0 | 2.3 ± 2.0 | 2.4 ± 2.0 | -5.6 ± 4.1 | -6.1 ± 4.3 | -5.4 ± 4.0 |
| AS | 4.4 ± 2.1 | 4.6 ± 2.2 | 4.4 ± 2.1 | -4.6 ± 2.3 | -4.8 ± 2.4 | -4.5 ± 2.2 |
| AN | 3.3 ± 1.8 | 3.3 ± 1.9 | 3.1 ± 1.7 | -7.1 ± 3.5 | -7.8 ± 4.0 | -6.8 ± 3.0 |
| AL | 1.9 ± 1.3 | 1.9 ± 1.3 | 1.8 ± 1.3 | -9.4 ± 3.7 | -10.2 ± 4.0 | -9.1 ± 3.7 |
| IL | 3.3 ± 1.6 | 3.4 ± 1.7 | 3.3 ± 1.5 | -4.6 ± 2.2 | -4.9 ± 2.3 | -4.5 ± 2.2 |
| IN | 3.8 ± 3.0 | 3.8 ± 3.1 | 3.9 ± 3.0 | -3.5 ± 3.0 | -4.1 ± 3.4 | -2.9 ± 2.7 |
| Global | 2.1 ± 1.2 | 2.1 ± 1.2 | 2.1 ± 1.2 | -4.4 ± 1.8 | -4.9 ± 1.8 | -4.1 ± 1.8 |
| Global timing | 117 ± 19 | 108 ± 28 | 109 ± 28 | 377 ± 41 | 373 ± 42 | 378 ± 39 |
*"Global" is the whole circumference, "total" represents the endo- and epicardial regions together. It can be seen that rotation is largest in the anterolateral region, and smallest in the inferior region. This however does not hold for the positive peak in base and mid rotation, here anteroseptal is largest. Rotation is largest in the endocardial region. The endocardium reaches its peak rotation shortly before the epicardium. IS: inferoseptal, AS: anteroseptal, AN: anterior, AL: anterolateral, IL: inferolateral, IN: inferior.