Table 4.
Pre-CMR indications and post CMR diagnoses
| Pre-CMR indication | Number of patients with pre-CMR diagnoses (%) | Most Common Post-CMR diagnoses | Number of patients with post-CMR diagnoses (%) |
|---|---|---|---|
| Amyloidosis of the heart | |||
| Total | 97 | ||
| No change in diagnosis | 72 (74%) | Same as pre-CMR diagnosis | 72 (100%) |
| Change in diagnosis | 25 (26%) | ||
| Non-ischemic cardiomyopathy | 13 (52%) | ||
| Coronary artery disease | 4 (16%) | ||
| Left ventricular hypertrophy | 3 (12%) | ||
| No amyloidosis | 4 (16%) | ||
| Possible hypertrophic cardiomyopathy | 1 (4%) | ||
| Arrhythmic Disease | |||
| Total | 136 | ||
| No change in diagnosis | 70 (51%) | Same as pre-CMR diagnosis | 70 (100%) |
| Change in diagnosis | 66 (49%) | ||
| Non-ischemic cardiomyopathy | 44 (67%) | ||
| Coronary artery disease | 9 (14%) | ||
| Possible myocarditis | 4 (6%) | ||
| Myocarditis | 1 (2%) | ||
| Hypertrophic cardiomyopathy | 1 (2%) | ||
| Left ventricular non-compaction | 1 (2%) | ||
| Coronary artery disease and non-ischemic cardiomyopathy | 1 (2%) | ||
| Cardiomyopathy and ventricular septal defect | 1 (2%) | ||
| Possible transplant rejection | 1 (2%) | ||
| No arrhythmic substrate | 3 (5%) | ||
| ARVC | |||
| Total | 423 | ||
| No change in diagnosis | 90 (21%) | Same as pre-CMR diagnosis | 90 (100%) |
| Change in diagnosis | 333 (79%) | ||
| Non-ischemic cardiomyopathy | 131 (39%) | ||
| No ARVC | 60 (18%) | ||
| Borderline left ventricular function without other significant abnormalities | 96 (29%) | ||
| Coronary artery disease | 13 (4%) | ||
| Myocarditis | 3 (1%) | ||
| ARVC and cardiomyopathy | 3 (< 1%) | ||
| LV non-compaction | 5 (2%) | ||
| Infiltrative cardiomyopathy | 2 (< 1%) | ||
| Likely inflammatory cardiomyopathy | 1 (< 1%) | ||
| Left ventricular hypertrophy | 2 (< 1%) | ||
| Ventricular septal defect | 1 (< 1%) | ||
| Right atrial dilatation without ARVC | 5 (2%) | ||
| Other diagnoses | 11 (3%) | ||
| Cardiomyopathy NYD | |||
| Total | 1,776 | ||
| No change in diagnosis | 662 (37%) | Same as pre-CMR diagnosis | 662 (100%) |
| Change in diagnosis | 1,114 (63%) | ||
| Coronary artery disease | 240 (22%) | ||
| Non-ischemic cardiomyopathy | 484 (43%) | ||
| Myocarditis | 52 (5%) | ||
| Left ventricular non-compaction | 42 (4%) | ||
| Borderline LV function without other significant abnormalities | 70 (6%) | ||
| Sarcoidosis | 34 (3%) | ||
| ARVC | 9 (< 1%) | ||
| Hypertrophic cardiomyopathy | 9 (< 1%) | ||
| Coronary artery disease and non-ischemic cardiomyopathy | 16 (1%) | ||
| Infiltrative cardiomyopathy | 26 (2%) | ||
| Hemochromatosis | 2 (< 1%) | ||
| Other diagnoses | 130 (12%) | ||
| Coronary Artery Disease | |||
| Total | 1,230 | ||
| No change in diagnosis | 960 (78%) | Same as pre-CMR diagnosis | 960 (100%) |
| Change in diagnosis | 270 (22%) | ||
| Non-ischemic cardiomyopathy | 154 (57%) | ||
| Borderline left ventricular function without other significant abnormalities | 42 (16%) | ||
| No coronary artery disease | 9 (3%) | ||
| Myocarditis | 12 (4%) | ||
| Coronary artery disease and non-ischemic cardiomyopathy | 11 (4%) | ||
| Sarcoidosis | 4 (1%) | ||
| Left ventricular non-compaction | 4 (1%) | ||
| Infiltrative cardiomyopathy | 8 (3%) | ||
| Hypertrophic cardiomyopathy | 2 (< 1%) | ||
| Hemochromatosis | 1 (< 1%) | ||
| Other diagnoses | 23 (9%) | ||
| Hypertrophic Cardiomyopathy | |||
| Total | 146 | ||
| No change in diagnosis | 80 (55%) | Same as pre-CMR diagnosis | 80 (100%) |
| Change in diagnosis | 66 (45%) | ||
| Non-ischemic cardiomyopathy | 22 (33%) | ||
| Coronary artery disease | 11 (17%) | ||
| Borderline left ventricular function without other significant abnormalities | 12 (18%) | ||
| Infiltration/amyloid | 6 (9%) | ||
| Left ventricular hypertrophy | 3 (5%) | ||
| No hypertrophic cardiomyopathy | 5 (8%) | ||
| Left ventricular non-compaction | 6 (9%) | ||
| Concomitant hypertrophic cardiomyopathy and coronary artery disease | 1 (2%) |
Legend. ARVC: Arrhythmogenic right ventricular cardiomyopathy, NYD: Not yet diagnosed