NDLI: Development of high resolution particle image velocimetry for use in artificial heart research

Content Provider	IEEE Xplore Digital Library
Author	Hochareon, P. Manning, K.B. Fontaine, A.A. Deutsch, S. Tarbell, J.M.
Copyright Year	2002
Description	Author affiliation: Bioeng. Dept., Pennsylvania State Univ., University Park, PA, USA (Hochareon, P.; Manning, K.B.; Fontaine, A.A.)
Abstract	Both high and low wall shear stresses have been implicated as causes for device failure after implantation. Previous studies have shown that the local flow field characteristics of artificial hearts do not scale simply as the device is reduced in size. To address this problem, a high resolution particle image velocimetry (PIV) system was developed to investigate the near wall flow field characteristic of the 50cc Penn State Artificial Heart. The PIV system has a resolution of roughly 6 microns per pixel and uses fluorescent particles to reduce noise due to reflections in the near wall region. The system was validated by measuring the laminar flow field in a 3/spl times/3 mm square tube. Valid velocity data were obtained in the central region of the tube and as close as 200 microns from the wall. Measured velocity profiles agreed with the analytical profile. The PIV system was then used to measure the flow field characteristics along the wall of the inlet section of the 50cc pump at peak diastole. Velocity profiles were obtained within a 5 mm region from the wall and exhibited wall strain rates varying from 1000-5000 s/sup -1/. The current focus is to increase the resolution and accuracy of the PIV measurements and to determine the optimal method of determining wall strain rate.
Starting Page	1591
Ending Page	1592
File Size	182381
Page Count	2
File Format	PDF
ISBN	0780376129
ISSN	1094687X
DOI	10.1109/IEMBS.2002.1106553
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image resolution Artificial heart Strain measurement Stress Fluorescence Noise reduction Acoustic reflection Velocity measurement Fluid flow measurement Capacitive sensors
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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