Table 2. Myocardial Tissue Characterization by Cardiac Magnetic Resonance Imaging.
| Control (n = 15) | Group 1 (n = 8) | Group 2 (n = 32) | P | |
|---|---|---|---|---|
| Native T1 (ms) | ||||
| Basal*†‡ | 1221.0 (1197.9,1244.0) | 1384.8 (1343.1, 1426.52) | 1472.1 (1443.7,1500.5) | < 0.001 |
| Mid*†‡ | 1222.0 (1194.0, 1250.1) | 1379.0 (1302.3, 1455.7) | 1454.9 (1414.8, 1495.1) | < 0.001 |
| Apical*†‡ | 1248.6 (1244.4, 1285.8) | 1389.4 (1330.0, 1448.7) | 1473.5 (1432.8, 1514.1) | < 0.001 |
| Global*†‡ | 1230.5 (1203.1, 1258.0) | 1384.4 (1328.9, 1439.9) | 1466.8 (1433.3, 1500.3) | < 0.001 |
| ECV (%) | ||||
| Basal*†‡ | 25.9 (24.1, 27.6) | 37.0 (33.0, 41.0) | 53.7 (50.5, 57.0) | < 0.001 |
| Mid*†‡ | 25.8 (27.0, 30.6) | 35.9 (31.1, 40.7) | 50.1 (46.9, 53.3) | < 0.001 |
| Apical*†‡ | 28.8 (27.0, 30.6) | 38.3 (33.1, 43.6) | 50.0 (47.0, 53.0) | < 0.001 |
| Global*†‡ | 26.0 (24.9, 27.0) | 36.9 (32.4, 41.4) | 51.4 (48.3, 54.5) | < 0.001 |
| T2 (ms) | ||||
| Basal†‡ | 48.9 (46.7, 51.0) | 53.6 (51, 56.2) | 53.9 (52.4, 55.4) | 0.001 |
| Mid†‡ | 48.7 (45.6, 51.7) | 53.3 (50.7, 56) | 54.1 (52.5.55.6) | < 0.001 |
| Apical†‡ | 49.9 (46.8, 53.0) | 54.4 (51.8, 57) | 54.7 (53.2, 56.2) | < 0.001 |
| Global†‡ | 48.9 (46.9, 51.0) | 53.8 (51.5, 56.1) | 54.2 (52.8, 55.6) | 0.001 |
Data are presented as mean (95% confidence interval). *Statistical significance between groups 1 and 2, †Statistical significance between group 1 and the control group, ‡Statistical significance between group 2 and the control group. ECV = extracellular volume