Table 4.
CMR findings according to final diagnosis
| No SHD (n = 52) | ICM (n = 46) | NICM (n = 38) | ARVC (n = 11) | HCM (n = 3) | Other (n = 7) | |
|---|---|---|---|---|---|---|
| Cine imaging | ||||||
| LV EDV indexed (mL/m2) | 70 ± 15 | 93 ± 31 | 94 ± 31 | 83 ± 24 | 77 ± 11 | 80 ± 19 |
| LV dilatation | 0 (0%) | 22 (48%) | 14 (37%) | 0 (0%) | 0 (0%) | 4 (57%) |
| LVEF (%) | 65 ± 7 | 45 ± 15 | 53 ± 17 | 56 ± 10 | 51 ± 11 | 56 ± 19 |
| LVEF impairment | 0 (0%) | 32 (70%) | 17 (45%) | 0 (0%) | 1 (33%) | 1 (14%) |
| LV wall motion abnormality | 0 (0%) | 36 (78%) | 16 (42%) | 0 (0%) | 1 (33%) | 3 (43%) |
| LV maximum thickness (mm) | 10.4 ± 0.8 | 9.6 ± 1.0 | 10.0 ± 1.4 | 10.4 ± 0.5 | 15.7 ± 2.1 | 10.2 ± 0.8 |
| RV EDV indexed (mL/m2) | 75 ± 16 | 70 ± 18 | 80 ± 23 | 118 ± 35 | 63 ± 10 | 111 ± 53 |
| RV dilatation | 0 (0%) | 1 (3%) | 4 (11%) | 8 (73%) | 0 (0%) | 6 (86%) |
| RVEF (%) | 56 ± 9 | 53 ± 9 | 51 ± 10 | 32 ± 7 | 55 ± 9 | 45 ± 18 |
| RVEF impairment | 0 (0%) | 4 (9%) | 9 (24%) | 11 (100%) | 0 (0%) | 4 (57%) |
| RV wall motion abnormality | 0 (0%) | 1 (3%) | 1 (3%) | 11 (100%) | 0 (0%) | 5 (71%) |
| LGE imaginga | ||||||
| LGE positive on LV | 0 (0%) | 46 (100%) | 35 (92%) | 3 (27%) | 3 (100%) | 0 (0%) |
| LGE extent on LV (N segments)b | – | 4.7 ± 2.7 | 2.8 ± 2.5 | 2.0 ± 1.0 | 3.3 ± 1.5 | – |
| Anterior LV LGE | – | 17 (37%) | 6 (16%) | 0 (0%) | 3 (100%) | – |
| Septal LV LGE | – | 23 (50%) | 13 (34%) | 0 (0%) | 3 (100%) | – |
| Inferior LV LGE | – | 30 (65%) | 5 (13%) | 1 (9%) | 1 (33%) | – |
| Lateral LV LGE | – | 29 (63%) | 28 (74%) | 3 (27%) | 0 (0%) | – |
| Subendocardial LGE | – | 46 (100%) | 2 (5%) | 0 (0%) | 0 (0%) | – |
| Non-ischemic LGE | – | 0 (0%) | 35 (92%) | 3 (27%) | 3 (100%) | – |
| Midwall | – | – | 19 (50%) | 1 (9%) | 3 (100%) | – |
| Subepicardial | – | – | 23 (61%) | 2 (18%) | 0 (0%) | – |
| Striae-like | – | – | 29 (76%) | 2 (18%) | 0 (0%) | – |
| Focal or patchy | – | – | 6 (16%) | 0 (0%) | 3 (100%) | – |
| Transmural LGE | – | 26 (56%) | 2 (5%) | 0 (0%) | 0 (0%) | – |
| LGE positive on RV | 0 (0%) | 2 (4%) | 2 (5%) | 11 (100%) | 0 (0%) | 5 (71%) |
| LGE extent on RV (N segments)b | – | 1 ± 0 | 1 ± 0 | 3.7 ± 1.8 | – | 1.4 ± 0.5 |
| Anterior RV LGE | – | 0 (0%) | 1 (3%) | 6 (54%) | – | 5 (71%) |
| Lateral RV LGE | – | 0 (0%) | 1 (3%) | 11 (100%) | – | 0 (0%) |
| Inferior RV LGE | – | 2 (4%) | 0 (0%) | 7 (63%) | – | 0 (0%) |
| Septal RV LGE | 0 (0%) | 0 (0%) | 0 (0%) | – | 5 (71%) |
ARVC, arrhythmogenic right ventricular cardiomyopathy; CMR, cardiac magnetic resonance; EF, ejection fraction; HCM, hypertrophic cardiomyopathy; ICM, ischaemic cardiomyopathy; LGE, late gadolinium enhancement; LV, left ventricle; NICM, non-ischaemic cardiomyopathy; RV, right ventricle; SHD, structural heart disease.
a
CMR protocol inclusive of high-resolution LGE.
b
Refers to patients with positive LGE.