Table 2 Associations of displacements from SCG and BCG with the peak of LV twist from 2D STI echocardiography.

From: Assessment of left ventricular twist by 3D ballistocardiography and seismocardiography compared with 2D STI echocardiography in a context of enhanced inotropism in healthy subjects

 

SCG

BCG

\({\mathrm{D}}_{\mathrm{Max}}^{\mathrm{Lin}}\)

\({\mathrm{D}}_{\mathrm{max}}^{\mathrm{Rot }}\)

\({\mathrm{D}}_{\mathrm{max}}^{\mathrm{Lin}}\)

\({\mathrm{D}}_{\mathrm{max}}^{\mathrm{Rot }}\)

LV twist

R = 0.05; p = 0.57

R = 0.17; p = 0.05

R = 0.18; p = 0.04

R = 0.3; p = 0.001

  1. Spearman's correlation of velocities computed from the SCG and BCG signals in both linear and rotational channels with peak of LV twist obtained with 2D STI echocardiography.
  2. \({D}_{max}^{Lin}\) maximal displacement in the linear dimension (mm/m2), \({D}_{Max}^{Rot}\) maximal displacements in the rotational dimension (°/m2), BCG ballistocardiograph, SCG seismocardiography.