Table 3.
Cardiac magnetic resonance imaging findings and final diagnosis in study population.
| Finding | Final Diagnosis | ||
|---|---|---|---|
| Normal | 23 (57.5) | ||
| Idiopathic VF | 14 (60.9) | ||
| Variant angina | 6 (26.1) | ||
| Other *2 | 3 (13.0) | ||
| Non-diagnostic | 12 (30) | ||
| CPR related finding | 3 (25) | Idiopathic VF | 5 (41.7) |
| Wall motion dyskinesia | 4 (33.3) | Variant angina | 3 (25) |
| Decreased contractility | 5 (41.7) | Other *3 | 4 (33.3) |
| Non-ischemic cardiomyopathy | 5 (12.5) | ||
| SCMP | 2 (40) | Idiopathic VF | 2 (40) |
| HCMP | 1 (20) | Variant angina | 1 (20) |
| Other finding that suggests non-ischemic cardiomyopathy *1 | 2 (40) | Other *4 | 2 (40) |
Values expressed as n (%). VF, ventricular fibrillation; CPR, cardiopulmonary resuscitation; SCMP, stress-induced cardiomyopathy; HCMP, hypertrophic cardiomyopathy. *1: Diffusely increased pre T1 value in LV wall, except apical lateral and inferior wall, diffuse decreased post T1 value in LV endocardium; Subtle myocardial fibrosis at RV insertion point. *2: Long QT syndrome (2), WPW syndrome (1). *3: Long QT syndrome, coronary spasm d/t tight stenosis, Brugada syndrome, SCMP. *4: Long QT syndrome, Cardiac arrest d/t bronchial edema.