Fig. 4From: Vicious circle between progressive right ventricular dilatation and pulmonary regurgitation in patients after tetralogy of Fallot repair? Right heart enlargement promotes flow reversal in the left pulmonary arteryCorrelation between left lung area ratio and left pulmonary artery regurgitant fraction and cardiac axis. LPA RF, regurgitant fraction in the left pulmonary arteryBack to article page