Table 2.
Cardiovascular MRI (CMR) measurements of the study group and comparison between patients with abnormal and normal rest perfusion.
| All patients (n = 80) | Group 1 (abnormal rest perfusion, n = 24) | Group 2 (normal rest perfusion, n = 56) | p-Value | |
|---|---|---|---|---|
| Left ventricular function and mass | ||||
| Indexed left atrium (cm2/m2) | 16 ± 4 | 17 ± 5 | 15 ± 4 | 0.107 |
| Indexed right atrium (cm2/m2) | 12 ± 3 | 12 ± 2 | 11 ± 3 | 0.218 |
| Ejection fraction: left ventricle | 58.6 ± 9 | 55.4 ± 10 | 59.9 ± 9 | 0.069 |
| Indexed stroke volume (ml/beat/m2) | 45.4 ± 8 | 45.4 ± 8 | 45.3 ± 8 | 0.920 |
| Indexed end-diastolic volume: left ventricle (ml/m2) | 79.1 ± 15 | 84.6 ± 16 | 77.0 ± 15 | 0.070 |
| Indexed end-systolic volume: left ventricle (ml/m2) | 34.0 ± 13 | 39.2 ± 14 | 32.0 ± 12 | 0.038 |
| Indexed left ventricular wall mass (g/m2) | 102.3 ± 40 | 116.5 ± 46 | 96.6 ± 36 | 0.066 |
| Maximum left ventricular myocardial thickness | 23.0 ± 7 | 24.6 ± 7 | 22.4 ± 7 | 0.194 |
| Late gadolinium enhancement | ||||
| Presence of fibrosis | 64 (80%) | 24 (100%) | 40 (71%) | 0.003 |
| Number of segments with fibrosis | 3.4 ± 3 | 5.4 ± 3 | 2.6 ± 2 | 0.001 |
| Fibrosis pattern | 0.007 | |||
| Confluent | 39 (49%) | 18 (75%) | 21 (38%) | 0.002 |
| Diffuse | 14 (18%) | 3 (13%) | 11 (14%) | 0.441 |
| Mixed | 11 (14%) | 3 (13%) | 8 (14%) | 0.832 |
| Fibrosis % volume (5 SD above mean of normal myocardium) | 18 ± 15 | 28 ± 17 | 14 ± 12 | 0.001 |