Chachava T M, Vaulina T N
Kardiologiia. 1981 Feb;21(2):47-51.
Morphogeometric study of 10 normal hearts and 10 hearts with tetrad of Fallot showed that this anomaly is marked by incomplete inversion of the conotruncus, as a result of which the aorta takes a position to the right of the pulmonary artery. In tetrad of Fallot, the supraventricular crista does not form, and the parietal end of the conal septum is displaced to the front and is attached to the anterior wall of the right ventricle. This displacement determines, for the most part, the constriction of the infundibulum of the right ventricle. The ventricular septal defect forms in this anomaly not because of lack of septal tissue, but because the planes of the conal and ventricle septa do not coincide.
对10个正常心脏和10个法洛四联症心脏进行的形态几何学研究表明，这种异常的特征是动脉干不完全反转，结果主动脉位于肺动脉右侧。在法洛四联症中，室上嵴未形成，圆锥间隔的壁端向前移位并附着于右心室前壁。这种移位在很大程度上决定了右心室漏斗部的狭窄。在这种异常情况下，室间隔缺损的形成不是因为间隔组织缺乏，而是因为圆锥间隔和心室间隔的平面不一致。
