Table 1.
Myocardial Characteristics Detectable by Cardiovascular Magnetic Resonance Imaging (CMR) that Affect the Ability of the Electrocardiogram to Quantitatively Assess Left Ventricular Hypertrophy
| Pathophysiological Characteristic | CMR Technique |
|---|---|
| Left/right ventricular volumes and mass | Volumetric measurement in cine images |
| Regional myocardialwallthickness | 3D distribution in cine images |
| Focal myocardial fibrosis (scar) | Late gadolinium enhancement |
| Diffuse myocardial fibrosis in the absence of scar | ECV mapping |
| Diffuse myocardial edema/inflammation | T1 mapping, T2 mapping |
| Focal myocardial edema/inflammation | T1 mapping, T2 mapping, |
| T2‐weighted imaging | |
| Focal myocardial fatty replacement | T1 mapping, |
| Fat/water‐weighted imaging | |
| Diffuse myocardial amyloid deposition | ECV mapping, T1 mapping |
| Diffuse myocardial glycolipid deposition (Fabry) | T1 mapping |
| Diffuse myocardial iron overload (siderosis) | T1 mapping, T2* measurement |
| Myocardial disarray | Diffusion Tensor CMR |
CMR = cardiovascular magnetic resonance imaging; ECV = extracellular volume; 3D = three‐dimensional. See text for further details on the respective techniques.