we conclude that ( 1 ) fetal cardiac chamber dimensions , wall thicknesses , and left ventricular mass increased with gestational age , ( 2 ) cardiac architecture in terms of the ratios of right ventricular/left ventricular diameters , left atrial/aortic diameters , and relative wall thickness remained constant , ( 3 ) right and left ventricular fractional shortening did not change with age , ( 4 ) left ventricular mass assessed echocardiographically corresponded closely with postmortem left ventricular weights in fetal hearts of similar gestational ages , and ( 5 ) the similarities between right and left ventricular sizes , wall thicknesses , and free wall weights in this study do not support the theory of right ventricular dominance in the human fetus .
C0225883
cardiac
C0018787
hearts