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Events for July 07, 2015
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Short Course: Six Sigma Green Belt for Process ImprovementTue, Jul 07, 2015
DEN@Viterbi, Executive Education
Conferences, Lectures, & Seminars
Abstract: Learn how to integrate principles of business, statistics and engineering to achieve tangible results. Master the use of Six Sigma to quantify the critical quality issues in your company. Once the issues have been quantified, statistics can be applied to provide probabilities of success and failure. Six Sigma methods increase productivity and enhance quality. As a Six Sigma green belt, you will be equipped to support and champion a Six Sigma implementation in your organization. To earn the Six Sigma Green Belt Certificate, you will be required to pass the Institute of Industrial Engineer's green belt exam (administered on the final day of the course).
This course is available on-campus and online.
More Info: http://gapp.usc.edu/professional-programs/short-courses/industrial-systems/six-sigma-green-belt-process-improvement
Audiences: Registered Attendees
Contact: Viterbi Professional Programs
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4D Blood Flow in the Human Heart: Optimal Vortex Ring Formation and Validation Challenges
Tue, Jul 07, 2015 @ 10:30 AM - 11:30 AM
Ming Hsieh Department of Electrical and Computer Engineering
Conferences, Lectures, & Seminars
Speaker: Johannes Töger, Lund University
Talk Title: 4D Blood Flow in the Human Heart: Optimal Vortex Ring Formation and Validation Challenges
Series: Medical Imaging Seminar Series
Abstract: Diastolic dysfunction, i.e. dysfunction of the filling mechanisms of the left ventricle (LV) of the heart, is a disease with poor prognosis even in its mild form [1] and new measures of diastolic dysfunction may improve patient care. During the early phase of diastole (filling) of the human heart, a vortex ring forms in the left ventricle (LV) downstream from the mitral valve [2, 3]. Features of the vortex ring has been shown to reflect overall cardiac function [3, 4] and may therefore give new insights into the pathophysiology of diastole.
The full three-dimensional dynamics of the vortex ring can be imaged using 4D flow magnetic resonance imaging and mathematical post-processing by Lagrangian Coherent Structures (LCS), a flow analysis tool based on the theory of nonlinear dynamical systems (Figure 1). Furthermore, we have constructed a flow phantom for validation of 4D flow measurements of pulsatile flow (Figure 2) using particle imaging velocimetry (PIV) and planar laser-induced fluorescence (PLIF), meeting the formidable design challenge of producing a pulsatile, physiological, fully three-dimensional and highly repeatable experiment [5].
In vivo studies, healthy volunteers (n=23) and patients with heart failure (n=23) [6, 7] show that the healthy heart displays a matching between the volume of the vortex ring and the volume of the LV that is lost in heart failure. Furthermore, the mixing of blood in the vortex ring is increased in heart failure patients compared to healthy hearts, which may reflect the impaired diastolic function in the patients.
Host: Prof. Krishna Nayak
Location: Hughes Aircraft Electrical Engineering Center (EEB) - 132
Audiences: Everyone Is Invited
Contact: Talyia White
