Pekkan cardiovascular biofluids group, Biomedical Engineering Deparment, Carnegie Mellon University

Lab pictures (2007-2008)

Students working in the lab

Here is the picture of our undergrad-grad research group-Mikhail Lara (ME-BME UnderGrad), Onur Dur (BME PhD Cand.), Dorian Arnold (BME PhD Cand.) working with the in vitro Flow Loop* for Pediatric Fontan Research.


workshop workshop workshop

Pictures taken during the one-day Biomedical enginnering workshop for K-12 teachers (from suburban, rural and urban Pittsburgh schools) conducted by our group.

embryo experiment image

Tom Smith (UPitt, MD student) and Yajuan Wang (BME PhD Cand.) performing in vivo micro flow visualization in early chick embryonic hearts.


Michael J Patrick getting help from Kerem Uguz (Nadine lab ME) during new two-photon/confocal microscope (Dahl lab) adventures.


*The flow loop is simulates the entire single ventricle Fontan circulation by using a modular pulsatile pump that can be run in either single ventricle or biventricular mode. Each ventricular chamber incorporates inflow (mitral / tricuspid) and outflow (aortic / pulmonary) valves. The system further consists of pressurized compliance chambers, variable resistance flow clamps, and the prototype TCPC anatomy. Instrumentation for simultaneous pressure and flow measurements was installed and connected to a DataQ (Akron, OH) DI-710 data acquisition system. The six adjustable compliance chambers represent the aorta; inferior and superior vena cavae; left and right pulmonary arteries and left atrium. They reproduce the elastic nature of the vessel wall and the related storage capacity, and consequently allow us to simulate volume shifts as a result of surgical intervention. Each chamber of the flow loop has an extra connector that can accept various sizes of cannulas. This versatile design can therefore accept the insertion of pediatric assist devices (i.e. in the picture a continuous pediatric VAD is connected to the Inferior vena cava) on the in several anastomotic configurations to analyze diverse postoperative clinical scenarios.