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Table 3 Values for systolic deformation parameters obtained using feature tracking for global and slice values in the volunteers studied (basal, mid, apical)

From: Global and regional left ventricular myocardial deformation measures by magnetic resonance feature tracking in healthy volunteers: comparison with tagging and relevance of gender

  Longitudinal Radial Circumferential Rotation (deg) Rotation rate (deg/s) Torsion (deg)
Level Strain Strain rate (s-1) Velocity (cm/s) Displacement (cm) Strain Strain rate (s-1) Velocity (cm/s) Displacement (cm) Strain Strain rate (s-1)
Global −0.19 ± 0.03 −1.08 ± 0.24 2.60 ± 0.55 5.04 ± 1.14 0.25 ± 0.06 1.25 ± 0.4 2.5 ± 0.36 5.1 ± .073 −0.21 ± 0.03 1.21 ± 0.18 N/A N/A 15.52 ± 7.55
Basal −0.21 ± 0.05 −1.21 ± 0.36 3.38 ± 0.72 6.61 ± 1.83 0.26 ± 0.08 1.23 ± 0.39 2.84 ± 0.53 6.02 ± 1.08 −0.22 ± 0.04 −1.33 ± 0.28 −8.44 ± 6.06 −59.79 ± 33.44 N/A
Mid −0.19 ± 0.04 −1.08 ± 0.27 2.65 ± 0.69 6.37 ± 10.15 0.24 ± 0.08 1.25 ± 0.36 2.48 ± 0.41 4.89 ± 0.82 −0.18 ± 0.03 −1.05 ± .018 N/A N/A N/A
Apical −0.16 ± 0.05 −0.98 ± 0.34 1.7 ± 0.74 2.74 ± 1.15 0.23 ± 0.09 1.18 ± 0.43 2.19 ± 0.41 4.38 ± 0.82 −0.21 ± 0.38 −1.26 ±0.25 7.36 ± 5.38 52.90 ± 28.78 N/A
  1. Data are presented as mean ± SD. s, seconds; cm, centimetres; deg, degrees; N/A, not applicable.