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UW-Madison BME 300 - Impedance Cardiography

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Impedance Cardiography Clients: Prof. John Webster Elena S. Bezrukova Team Members: Jacob Meyer (Leader) David Schreier (Communicator) Tian Zhou (BSAC) Ross Comer (BWIG) Mar. 12 to Feb. 18 Project Statement: Impedance Cardiography is a non-invasive medical procedure utilized in order to properly analyze and depict the flow of blood through the body. With this technique, four electrodes are attached to the body—two on the neck and two on the chest—which take beat by beat measurements of blood volume and velocity changes in the aorta. However, our client hypothesizes that the current method withholds degrees of inaccuracy due to the mere fact that the electrodes are placed too far from the heart. Our collective goal is to design an accurate, reusable, spatially specific system that ensures more accurate and reliable cardiographic readings. Furthermore, this system must produce consistent results able to be accurately interpreted by industry professionals. Initial Design Goals: - Test new filters - Determine best positioning Project Status Summary: This week in lab we gathered cardiac output by means of the method currently in place, that is, we placed two electrodes on the neck and two on the abdomen. We then tested the electrodes placed on the same side and opposite sides. These will lay down a basis forcomparison to our method of placing electrodes directly over the heart. We then began to test different electrode angles, starting at 30 degrees from the vertical. In order to adequately compare our data with that of the current method, we will be researching the means by which to interpret graphical impedance analyses. Future Design Expectations: - Research method by which to interpret - Confirm results with client - Compare results to traditional impedance method Work Hours:Name Work Performed No. of Hours/Task Total Hours Jacob Meyer Progress Report Team meeting 1 hr 3 hr 4 hrs David Schreier Communication Team Meeting ½ hr 3 hr 3 ½ hr Tian Zhou BSAC meeting Team Meeting 1 hr 1 ½ hr 2 ½ hr Ross Comer Team Meeting Website update 3 hr ½ hr 3 ½ hr Team 13 ½


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UW-Madison BME 300 - Impedance Cardiography

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