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Table 2 Diastolic parameters with TPM included into myocardium for calculating normal values as significant function of age

From: Insights into diastolic function analyses using cardiac magnetic resonance imaging: impact of trabeculae and papillary muscles

Parameter p Function of age (= x) a0 a1 a2 r2 SEE
LVpreAi 7.6E-04 a0 + a1∙x 77.2 − 0.42   0.28 12.1
DVR% p < 10–6 a0 (1 − exp(− x/a1)) + a2 69.1 30.8 18.6 0.64 9.50
EPFR/SV p < 10–6 a0∙exp(− x/a1) 7.45 82.3   0.64 0.76
APFRi p < 10–6 a0∙exp(− x/a1) 7.45 82.3   0.64 0.76
PFRR p < 10–6 a0∙exp(− x/a1) 8.9 24.4   0.85 0.66
FVR p < 10–6 a0∙exp(− x/a1) 11.2 27.9   0.89 0.72
TPFR (ms) 4.5E−04 a0 (1 − exp(− x/a1)) + a2 74.7 21.5 90.2 0.30 19.1
DT (ms) 4.0E−06 a0 (1 − exp(− x/a1)) + a2 63.9 22.4 84.6 0.14 24.2
  1. LVpreA, time-volume at EAmin; EAmin, minimum between Early and Atrial peak relative to APFR; DVR%, diastolic volume recovery (percentage to diastole); EPFR/SV, early peak filling rate/stroke volume; APFR, atrial peak filling rate; PFRR, peak filling rate ratio; FVR, filling volume ratio; TPFR, time to peak filling rate; DT, deceleration time; i, indexed parameter
  2. Spearman rank correlation probabilities (p), coefficients a0–a2, coefficient of determination r2, and standard error of estimate (SEE)