Fluid-structure interaction numerical simulation of bypassed DeBakey Ⅲ aortic dissection
- VernacularTitle:搭桥术治疗DeBakey Ⅲ型主动脉夹层的流固耦合数值模拟
- Author:
Bo CHU
1
;
Ai-ke QIAO
1
Author Information
1. College of Life Science and Bioengineering, Beijing University of Technology
- Publication Type:Journal Article
- Keywords:
Aortic dissection;
Bypass graft;
Numerical simulation;
Pressure;
Hemodynamics;
Computational fluid dynamics(CFD)
- From:
Journal of Medical Biomechanics
2012;27(4):E386-E391
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the mechanical mechanism of bypass graft for the treatment of DeBakey III aortic dissection and explore the valid surgical planning. Methods Patient-specific models of DeBakey III aortic dissection, including the models of through lumen and blind lumen, before and after bypassing between ascending aorta and abdominal aorta, between left subclavian artery and abdominal aorta, were constructed, and then numerical simulations were performed using computational fluid dynamics (CFD) method under physiological flow conditions based on fluid-structure interaction (FSI). Results Blood flow velocity, pressure, vessel wall displacement of the false lumen after bypass graft were reduced by 38.86%, 15.347 kPa and 39.46% on average, respectively. Conclusions Bypass graft is an effective surgical method for the treatment of DeBakey III aortic dissection under specific conditions with good prospects in clinical application.
