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Table 3 Time intervals and indices of left ventricular function

From: Early-stage heart failure with preserved ejection fraction in the pig: a cardiovascular magnetic resonance study

  Controls (n = 7) DOCA (n = 5) Controls vs. DOCA
Parameter Rest Stress p Rest Stress p prest pstress
PET (ms) 82 ± 24 46 ± 23 0.006 110 ± 19 46 ± 16 0.007 0.053 0.972
PFTE (ms) 382 ± 35 286 ± 19 < 0.001 389 ± 37 289 ± 34 0.001 0.752 0.831
PFTA (ms) 586 ± 36 446 ± 13 < 0.001 622 ± 66 485 ± 67 0.007 0.255 0.160
IVRT (ms) 80 ± 15 78 ± 16 0.786 99 ± 10 93 ± 17 0.618 0.034 0.146
IVCT (ms) 46 ± 14 28 ± 8 0.013 56 ± 9 34 ± 11 < 0.001 0.175 0.330
LVET (ms) 205 ± 36 141 ± 22 0.008 194 ± 29 129 ± 53 0.005 0.600 0.606
IMP 0.64 ± 0.23 0.77 ± 0.18 0.353 0.82 ± 0.17 1.20 ± 0.82 0.313 0.179 0.201
tdiastase (ms) 90 ± 34 55 ± 28 0.017 94 ± 43 67 ± 14 0.139 0.858 0.408
  1. PET peak ejection time, PFT E early diastolic peak filling time, PFT A late diastolic peak filling time, IVRT isovolumetric relaxation time, IVCR isovolumetric contraction time, LVET left ventricular ejection time, IMP index of myocardial performance, t diastase duration of left ventricular diastasis
  2. p is related to the rest-stress comparison within each group. prest and pstress relate to group comparisons at rest and stress, respectively