heart left ventricle weight to body weight ratio 2011-01-21T09:42:17Z A calculated value in which the weight of the left ventricle, the lower chamber of the left side of the heart, which pumps oxygenated blood out through the aorta to all the tissues of the body, is divided by the total weight of the body and the result presented as a ratio, fraction, quotient or percentage, thus normalizing it to body weight and by extension to the size of the organism. LV mass/BW heart left ventricle weight as a percentage of body weight mshimoyama calculated heart left ventricle weight