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

摘要

BackgroundTorsion shear angle φ is an important measure of left ventricular (LV) systolic and diastolic functions. Here we provide a novel index utilizing LV normalized torsion shear angle volume loop to assess LV diastolic functional properties. We defined the area within loop as torsion hysteresis area, and hypothesized that it may be an important global parameter of diastolic function. We evaluated the changes to increased during early diastole as a potential measure of LV suction.