Journal of Vascular Medicine & Surgery

Tzong-Shyng Leu

Publications

• Research Article
  Numerical Simulation of Blood Flow in Double-Barreled Cannon EVAR and its Clinical Validation
  Author(s): Rui-Hung Kao, Wei-Ling Chen, Tzong-Shyng Leu, Tainsong Chen and Chung-Dann KanRui-Hung Kao, Wei-Ling Chen, Tzong-Shyng Leu, Tainsong Chen and Chung-Dann Kan
  
  The Double-Barreled cannon stent-graft Aortic Repair (DoBAR) strategy is a specific method for fixing extremely dilated aortic landing-zone issue. Its clinical validation and application may be examined using computational schemes. Three assumed conditions: the single stent-graft, the longitudinal direction (LD)-type DoBAR, and the sagittal direction (SD)-type DoBAR models were examined by computational fluid dynamics (CFD) simulations. Two specific points in one cardiac cycle were plotted. The non-dimensional frequency parameters were calculated to evaluate the flow field stabilities. The primary axial flow skewed from inner to outer aortic portion after passing through the aortic arch at peak forward-flow time (PFFT) and formed the swing signature at peak reverse-flow time (PRFT). The secondary flow developed as counter-rotating vortices of this model. In LD-type, the septum of ante.. View More»
  DOI: 10.4172/2329-6925.1000160

  Abstract PDF