Integration of the computational fluid dynamics technique with MRI in aortic dissections

Hydrodynamic Improvement of underwater glider by Computational Fluid Dynamics method

Gliders are new marine vehicles which have research and military uses and they move by sequent diving and climbing. Suitable design of its main body and wings are important for the most advance velocity. hydrodynamic design variables are main body form, wings (cross section, dimensions, shape, longitudinal and vertical position) and hydrostatic parameters (static trim angle, amount of added for...

Computational fluid dynamics simulation of transcatheter aortic valve degeneration.

OBJECTIVES Studied under clinical trials, transcatheter aortic valves (TAV) have demonstrated good short-term feasibility and results in high-risk surgical patients with severe aortic stenosis. However, their long-term safety and durability are unknown. The objective of this study is to evaluate hemodynamic changes within TAV created by bioprosthetic leaflet degeneration. METHODS Computationa...

Utility of the aortic fenestration technique in the management of acute aortic dissections.

Type B acute aortic dissection is not uncommonly encountered by cardiovascular and thoracic surgeons. However, the optimal treatment of patients, particularly those with visceral and renal vessel ischemia, is not well standardized. This is, in part, because of the high morbidity and mortality that continues to plague aortic replacement surgery in that setting. For this reason, other techniques ...

Computational fluid dynamics simulations guided by Fourier velocity encoded MRI

Introduction: Fourier velocity encoding (FVE) is a promising MRI method for assessment of cardiovascular blood flow. FVE provides considerably higher signal-to-noise ratio (SNR) than phase contrast (PC) imaging, and is robust to partial-volume effects. On the other hand, FVE does not directly provide velocity maps. These maps are useful for calculating the blood flow through a vessel, or for gu...

Determining the effect of congenital bicuspid aortic valves on aortic dissection using computational fluid dynamics