Table 3.
Postcontrast Tissue Characteristics and Anatomic Features of Cardiac Metastases
| Overall | Diffuse Enhancement | Heterogeneous Enhancement | P Value | |
|---|---|---|---|---|
| Anatomic features | ||||
| Maximal diameter, cm | 5.0±3.6 | 2.4±1.1 | 6.1±3.2 | 0.001b |
| Minimal diameter, cm | 2.9±2.1 | 1.6±0.9 | 3.3±2.0 | 0.013b |
| Area, cm2 | 16.2±22.8 | 3.5±2.9 | 19.3±22.1 | 0.021b |
| Perimeter, cm | 15.1±12.5 | 6.7±3.1 | 17.5±9.8 | 0.001b |
| Perimeter/minimal diameter | 5.0±1.4 | 4.3±1.0 | 5.6±1.4 | 0.006b |
| Tissue propertiesa | ||||
| Contrast‐to‐noise ratio | 9.8±9.1 | 2.6±2.4 | 14.9±8.6 | <0.001b |
| Signal‐to‐noise ratio | 30.8±25.5 | 36.1±30.8 | 27.0±21.2 | 0.39 |
a
Quantification of contrast‐enhanced tissue properties via dedicated “long TI” delayed enhancement cardiac magnetic resonance possible in 91% (29/32) patients (long TI not obtained in 3 patients because of inability to tolerate full cardiac magnetic resonance protocol).
b
P<0.05.