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Keefe B. Manning

 

 

Ph.D. Biomedical Engineering, Virginia Commonwealth University, 2001

Assistant Professor of Bioengineering

Dept. of Bioengineering
219 Hallowell Bldg
Tel:814-863-6318
Fax:814-863-0490
Email:kbm10@psu.edu

Lab: Artificial Heart

Dr. Manning’s research approach focuses primarily on 1) understanding the native cardiovascular system fluid mechanics, 2) understanding the diseased cardiovascular system fluid mechanics, and 3) the impact that cardiovascular prosthetics generate during and post implantation. To accomplish these goals, in vitro experiments are implemented to understand the cardiovascular system, and to investigate and improve cardiovascular prosthetics, artificial hearts, blood pumps, and mechanical heart valves including efforts to minimize the impact of these devices to the cardiovascular system. The research is conducted in the Artificial Heart Laboratory and the Cardiovascular Fluid Dynamics Laboratory. The in vitro experiments are compared with in vivo data collected at the Hershey Medical Center and the Aarhus University Hospital in Denmark.

Specifically, in vitro experiments are conducted utilizing state-of-the-art flow measurement techniques such as high speed videography, three-component laser Doppler velocimetry (LDV), and particle image velocimetry (PIV). By employing these techniques, flow phenomena (turbulence, eddys, stagnant zones, recirculation regions, vortices) can be quantified and the devices improved to minimize blood damage (hemolysis) and eliminate thrombus deposition and formation.

Since more left ventricular assist devices (LVADs) are being implanted as bridge to recovery and bridge to transplant, further research interests include improving the surgical implantation of these LVADs to minimize blood trauma associated with implantation and eliminate any potential for thromboembolic events caused by the LVAD end-to-side anastomsis. Other research efforts include investigating the influence of the Non-Newtonian behavior of blood in connection with the Penn State pediatric ventricular assist device (PVAD) currently in development, and conducting blood rheological studies to better understand the flow mechanisms that induce thrombus development and deposition associated with cardiovascular prosthetics.