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Table 3 Significant determinants of the sensor built FFR.

From: Cardiac reflections and natural vibrations: Force-frequency relation recording system in the stress echo lab

  Rest Force Peak Force FFR Δ rest-peak FFR Δ % rest-peak
Age (yrs)   -0.53 -0.52 -0.43
BSA (m2)     
LVMI (g/m2)     
LV EF % 0.38 0.27 0.19 0.23
WMSI   -0.19   
HR (bpm)   0.58 0.63 0.57
SP/ESV index (mmHg/mL/m2) 0.34 0.36 0.49 0.57
Cardiac index (L/min/m2)   0.41 0.45 0.44
Ventricular/arterial coupling 0.38 0.21 0.18 0.22
LV EDV index (mL/m2)     
  1. Multiple linear regression analysis to identify significant relationship between predictor variables (first column) and the sensor isovolumic contraction force was performed for baseline (second column) and stress values (third, fourth and fifth column). Pearson's correlation coefficients are reported in cells with significant (p < 0.05) relationships.