Study of the influence of the conduit diameter in the fontan procedureby computational fluid dynamics
DOI:
https://doi.org/10.24054/rcta.v1i37.1200Keywords:
Fontan procedure, Computational Fluid Dynamics, CFD, conduit diameter, extracardiac, pulmonary atresiaAbstract
The objective of the present work is to study the effects of the diameter of the conduit on the extracardiac modification of the Fontan procedure using computational fluid dynamics (CFD) in the case of pulmonary atresia with univentricular anatomy. To obtain the three-dimensional anatomical model of the patient, images from MRI were used, likewise, these data were used to perform the segmentation and obtain the flow data in the superior and inferior vena cava. From the results of Post-Fontan catheterization, blood pressure was obtained in the pulmonary branches and from the hematocrit count the viscosity of the blood was estimated. The simulations were implemented in the commercial software Ansys Fluent v17 and the hemodynamics were analyzed under steady state conditions for 16 mm, 18 mm, 20 mm and 22 mm conduits, observing the effects of the change in the diameter with respect to the energy of loss and stagnation zones.
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