Left ventricular (LV) twist or torsion represents the mean longitudinal gradient of the net
difference in clockwise and counterclockwise rotation of the LV apex and base, as viewed …

The left ventricle twists in systole storing potential energy and untwists (recoils) in diastole
releasing the energy. Twist aids left ventricular ejection and untwist aids relaxation and …

Background—Left ventricular (LV) torsion is due to oppositely directed apical and basal
rotation and has been proposed as a sensitive marker of LV function. In the present study …

Objectives: We sought to examine the accuracy/consistency of a novel ultrasound speckle
tracking imaging (STI) method for left ventricular torsion (LVtor) measurement in comparison …

OBJECTIVES The purpose of this study was to determine the spatial distribution of
myocardial function (myofiber shortening and work) within the left ventricular (LV) wall …

Regional nonuniformity is a feature of both diseased and normal left ventricles (LV). With the
use of magnetic resonance (MR) myocardial tagging, we performed three-dimensional strain …

Left ventricular (LV) untwisting starts early during the isovolumic relaxation phase and
proceeds throughout the early filling phase, releasing elastic energy stored by the preceding …

PRINZEN, FW, et al.: Relation Between the Pacing Induced Sequence of Activation and Left
Ventricu‐lar Pump Function in Animals. The main goal of this article was to review animal …

During left ventricular (LV) torsion, the base rotates in an overall clockwise direction and the
apex rotates in a counterclockwise direction when viewed from apex to base. LV torsion is …

Background—Left ventricular (LV) torsional deformation is a sensitive index for LV
performance but difficult to measure. The present study tested the accuracy of a novel …