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Table 4 Torsion shear angle-volume loop derived parameters

From: Left ventricular torsion shear angle volume analysis in patients with hypertension: a global approach for LV diastolic function

  Control HTN
(n = 40) (n = 60)
Torsion hysteresis† 0.078 ± 0.045 0.11 ± 0.067*
Peak E Dia d φ ^ /d V ^ 6.29 ± 3.85 10.45 ± 8.51*
  1. Values are mean ± SD; HTN: hypertension; E Dia: early diastole; φ ^ : normalized torsion shear angle; V ^ , normalized volume; * = significantly different from Control; †, the statistical significance retains after adjusting for age effect.