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, dinámica de fluidos computacional, CFD, diámetro de conducto, extracardiaco, atresia pulmonarAbstract
En el presente trabajo se estudian los efectos del diámetro del conducto en la modificación extracardíaca del procedimiento Fontan utilizando dinámica de fluidos computacional (CFD) en un caso de atresia pulmonar con anatomía univentricular. Para obtener el modelo anatómico tridimensional del paciente se utilizaron las imágenes provenientes de la resonancia magnética (MRI), así mismo, se utilizaron estos datos para realizar la segmentación y obtener los datos de flujo en la vena cava superior (VCS) e inferior (VCI). De los resultados del cateterismo Post-Fontan se obtuvo la presión sanguínea en las ramas pulmonares y del conteo de hematocritos la viscosidad de la sangre. Las simulaciones se implementaron en el software comercial Ansys Fluent v17 en el cual se analizó la hemodinámica bajo condiciones de flujo estacionario para conductos de 16 mm, 18 mm, 20 mm y 22 mm observando la energía de pérdida y estancamiento para cada caso.
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