Table 2.
Magnetic resonance functional measurements in patients and controls
| Variable | Patients (n = 162) | Controls (n = 70) | P value |
|---|---|---|---|
| Heart rate, beats per minute | 76.6 ± 16.7 | 71.8 ± 13.4 | 0.11 |
| LV ejection fraction, % | 63.1 ± 8.0 | 64.7 ± 7.0 | 0.13 |
| LV stroke volume, ml | 97 ± 17 | 97 ± 21 | 0.86 |
| LV end-diastolic volume, ml | 155 ± 34 | 153 ± 36 | 0.69 |
| LV end-diastolic diameter, mm | 51.1 ± 5 | 52.3 ± 4 | 0.08 |
| Cardiac output, L/min | 6.5 ± 1.5 | 7.0 ± 1.6 | 0.03 |
| STIR of the left ventricular myocardium | 590 ± 112 | 536 ± 115 | 0.007 |
| STIR of the skeletal muscle | 294 ± 60 | 299 ± 54 | 0.64 |
| STIR myocardium/skeletal muscle | 2.0 ± 0.3 | 1.8 ± 0.3 | 0.001 |
| Contrast enhancement, % | 67.9 | 8.5 | <0.0001 |
LV indicates left ventricular. Values are expressed as mean ± standard deviation
STIR: T2-weighted, fast spin echo triple inversion recovery sequences. Values are expressed as mean ± standard deviation