Computational Fluid Dynamics Characterization of Two Patient-Specific Systemic-to-Pulmonary Shunts before and after Operation

Figure 1

Three-dimensional neonatal arteries model of infants A ((a) model A) and B ((b) model B) and central shunt (CS) configuration established for infants A ((c) A-CS) and B ((d) (B-CS)), modified Blalock–Taussig shunt (MBTS) configuration established for infants A ((e) A-MBTS) and B ((f) B-MBTS). In order to simplify the model, we neglected independent branching vessels. The remaining vessels include ascending aorta (AAO), innominate artery (IA), left carotid artery (LCA), left subclavian artery (LSA), descending aorta (DAO), main pulmonary artery (MPA), left pulmonary artery (LPA), and right pulmonary artery (RPA). The central shunts are placed between AAO and MPA. The right-modified Blalock–Taussig (MBT) innominate shunt connects IA to RPA.