Table 2 Healthy subjects: Global and regional peak rotation (°) and global time to peak rotation (ms)*
From: Regional assessment of left ventricular torsion by CMR tagging
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 |