Right ventricular (RV) enlargement and pulmonary valve insufficiency (PI) are well-known, unavoidable long term sequelae encountered by patients who undergo tetralogy of Fallot (TOF) surgery. Energy losses in the pulmonary artery (PA) of TOF and normal subjects was calculated using patient specific geometry and pressure and flow data to develop quantifiable clinical diagnostic parameters. The TOF subject shows 35% higher energy losses than our normal subject.

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