J
John Westerdale
Researcher at Arizona State University
Publications - 6
Citations - 136
John Westerdale is an academic researcher from Arizona State University. The author has contributed to research in topics: Finite element method & Velocimetry. The author has an hindex of 6, co-authored 6 publications receiving 123 citations. Previous affiliations of John Westerdale include Mayo Clinic.
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Journal ArticleDOI
Flow velocity vector fields by ultrasound particle imaging velocimetry: in vitro comparison with optical flow velocimetry.
John Westerdale,Marek Belohlavek,Eileen M. McMahon,Panupong Jiamsripong,Jeffrey J. Heys,Michele Milano +5 more
TL;DR: In this article, the performance of ultrasound PIV was compared with optical PIV on a benchmark problem involving vortical flow with a substantial out-of-plane velocity component.
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Left ventricular flow analysis: Recent advances in numerical methods and applications in cardiac ultrasound
Iman Borazjani,John Westerdale,Eileen M. McMahon,Prathish K. Rajaraman,Jeffrey J. Heys,Marek Belohlavek +5 more
TL;DR: This work reviews the recent advances in numerical and experimental methods for characterizing LV flows and focuses on analysis of intraventricular flow fields by echocardiographic particle image velocimetry (echo-PIV), due to its potential for broad and practical utility.
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Weighted least-squares finite elements based on particle imaging velocimetry data
Jeffrey J. Heys,Thomas A. Manteuffel,Stephen F. McCormick,Michele Milano,John Westerdale,Marek Belohlavek +5 more
TL;DR: The potential of least-squares finite element methods (LSFEM) is examined and by weighting the boundary conditions in a manner that properly reflects the accuracy with which the boundary values are known, the weighted LSFEM is developed.
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Impact of pericardial adhesions on diastolic function as assessed by vortex formation time, a parameter of transmitral flow efficiency
Panupong Jiamsripong,Mohsen S. Alharthi,Anna M. Calleja,Eileen M. McMahon,Minako Katayama,John Westerdale,Michele Milano,Jeffrey J. Heys,Farouk Mookadam,Marek Belohlavek +9 more
TL;DR: Patchy pericardial adhesions not only negatively impact LV mechanical functioning but the decrease of VFT from normal to suboptimal value suggests impairment of transmitral flow efficiency.
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Effects of Bileaflet Mechanical Mitral Valve Rotational Orientation on Left Ventricular Flow Conditions
TL;DR: It is concluded that bileaflet MHV orientation influences hemodynamics of LV filling, however, determination of ‘optimal’ valve orientation cannot be made without measurement techniques that account for the highly 3-dimensional intraventricular flow.