Table 2 Magnetic resonance functional measurements in patients and controls
From: Patients with exercise-associated ventricular ectopy present evidence of myocarditis
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 |