【摘 要】
：
Left ventricular (LV) torsion is a measurement derived from the twisting or wringing motion of the heart around its long axis.Torsion is the base-to-apex gradient in the rotation angle along the longi
【机 构】
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Echocardiography Laboratory Gachon University South Korea
【出 处】
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BITs 2rd Annual World Cancer Congress of Cardiology-2010(201
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Left ventricular (LV) torsion is a measurement derived from the twisting or wringing motion of the heart around its long axis.Torsion is the base-to-apex gradient in the rotation angle along the longitudinal axis of the LV, expressed in degrees per centimeter or radians per meter.The absolute apex-to-base difference in LV rotation is stated as the net LV twist angle or the net LV torsion angle.This unique "wringing" movement of the ventricle is possible due to the helical orientation of myocardial fibers.In detail, the subendocardial fibers are arranged in a right-handed helix and the subepicardial fibers in a left-handed helix.
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