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Calculating Relative Lung Perfusion Using Fluoroscopic Sequences and Image Analysis: The Fluoroscopic Flow Calculator

Circulation: Cardiovascular Interventions

Circulation: Cardiovascular Interventions, Ahead of Print. BACKGROUND:Maldistribution of pulmonary blood flow in patients with congenital heart disease impacts exertional performance and pulmonary artery growth. A strong correlation between the predicted flow split and the measured flow split was found (R2=0.83;P<0.001).