Simulation Based Planning

Vascular CalculatorCardiovascular Hemodynamics

We are developing a clinically accessible software tool that will provide vascular surgeons with the ability to evaluate patient specific treatment options prior to picking up a scalpel. Our tool uses the efficient One-Dimensional finite element analysis method to provide descriptions of pressure and flow distributions using standard computers.
Team: Team: Olgha Davis, Brett Sheridan, Walter Tan, Brooke Steele

Minor Loss Coefficients
In order to leverage the efficiency of the One-Dimensional Method, robust Minor Loss coefficients are required to approximate the energy losses associated with comlex geometry and disease. Currently we have loss terms for basic junctions. We are developing junction terms to accomodate relevant physiologic junctions for use in the Vascular Calculator.
Team: Team: Brooke Steele, Ga Tech Colaborators

ViscoElastic Wall Properties
We are interested in using a more realistic arterial boundary condition to model wave propagation through a network of vessels.
Team: Team: Olgha Davis, Mansoor Haider, Brooke Steele

Dynamic Impedance Boundary Conditions
We are interested in investigating the transient response of blood distribution to physiologic changes. To do this we must develop a methodology for modeling physiologic response to a variety of stimuli. We will implement and test our dynamic impedance using the one-dimensional hemodynamic simulator.
Team: Team: Rachel Clipp, Mette Olufsen, David Lalush, Brooke Steele

Hemodynamic Analysis

Energetics associated with Fontan treatments
In some forms of congenital heart defects, only one ventricle is functional. In these cases, an effort is made to redirect the systemic flow through the functional ventricle and direct the venous return directly to the pulmonary circulation. Currently several strategies are employed. We are determining the relative efficiencies between these strategies by considering the alternate geometries and graft materials in use.
Team: Team: Greg Eppard, Brooke Steele, Ajit Yoganathan, Carol Lucas