Paper Info
Title
Hemodynamic analysis of modified Blalock-Taussig shunt: Effects of anastomosis angle of the conduit on pulmonary flow
Abstract
To treat cyanotic congenital heart defect, modified Blalock-Taussig (mB-T) shunt is an effective procedure used in clinic. The pulmonary artery is bridged by a conduit with the systemic circulation to increase the flow of blood. Here, we report on three-dimensional (3D) hemodynamic analysis of the effects of conduit anastomosis angle on pulmonary flow. A 3D model based on post-operative medical images of the mB-T shunt was constructed and computer-aided design (CAD) was applied to create a new model with vertical anastomosis angle of the conduit at pulmonary artery. Local hemodynamics like total pressure, wall shear stress (WSS) and blood flow distribution ratio (FDR) were calculated. The scheme of vertical anastomosis angle of the conduit on the pulmonary artery can increase the blood flow distribution to two lungs and blood flows more smoothly in the conduit. These are well congruent with our clinical experience. This indicates the numerical methods can be applied to investigate hemodynamics of the mB-T shunt for the prediction of pulmonary flow and optimized the conduit implantation by virtual design for patient-specific surgery in future.
Year
DOI
Venue
2014
10.1109/BMEI.2014.7002815
BMEI
Keywords
Field
DocType
cyanotic congenital heart defect treatment,pulmonary flow conduit,anastomosis angle effects,wall shear stress,cardiology,computerised tomography,diseases,virtual reality,conduit anastomosis angle,computational fluid dynamics,flow simulation,virtual design,systemic circulation,blood vessels,numerical methods,patient-specific surgery,modified blalock-taussig shunt,pneumodynamics,lung,three-dimensional hemodynamic analysis,total pressure,hemodynamics,shear flow,vertical anastomosis angle,anastomosis angle,pulmonary artery,clinical experience,mb-t shunt,computer-aided design,lungs,surgery,medical image processing,blood flow distribution ratio,haemodynamics,post-operative medical images,blood,biomedical imaging,solid modeling,mathematical model
Hemodynamics,Electrical conduit,Pulmonary artery,Blood flow,Modified Blalock-Taussig shunt,Anastomosis,Computer science,Shunt (electrical),Internal medicine,Flow (psychology),Cardiology,Surgery
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
8
Name
Order
Citations
PageRank
Jinlong Liu114.01
Qi Sun222.46
Haifa Hong355.06
Zhou Du410.82
Qian Wang524555.19
Yanjun Sun600.68
Jinfen Liu753.71
Yi Qian872.54