A4 Refereed article in a conference publication
Shear wave tracking: open chest versus closed chest
Authors: HJ Vos, M Strachinaru, BM van Dalen, I Heinonen, J Bercoff, JG Bosch, DJ Duncker, AFW van der Steen, N de Jong
Conference name: IEEE International Ultrasonics Symposium
Publication year: 2016
Book title : 2016 IEEE International Ultrasonics Symposium Proceedings
Journal name in source: 2016 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
Journal acronym: IEEE INT ULTRA SYM
Number of pages: 4
ISBN: 978-1-4673-9897-8
ISSN: 1948-5719
Web address : http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7728764
Abstract
This paper describes an in-vivo pilot study in which the systolic myocardial stiffness of four pigs was measured with various acoustic techniques. We compare the propagation velocity of shear waves in open chest and closed chest experiments, in which the open-chest shear wave was either physiologically induced by aortic valve closure (N=3), or externally induced by acoustic-radiation force (N=1). The results of closed-chest versus open-chest recordings are consistent within 1 unit of standard error, whereas the acoustic-radiation force measurement showed lowest standard deviation (7% versus 13%).
This paper describes an in-vivo pilot study in which the systolic myocardial stiffness of four pigs was measured with various acoustic techniques. We compare the propagation velocity of shear waves in open chest and closed chest experiments, in which the open-chest shear wave was either physiologically induced by aortic valve closure (N=3), or externally induced by acoustic-radiation force (N=1). The results of closed-chest versus open-chest recordings are consistent within 1 unit of standard error, whereas the acoustic-radiation force measurement showed lowest standard deviation (7% versus 13%).
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