A4 Vertaisarvioitu artikkeli konferenssijulkaisussa
Shear wave tracking: open chest versus closed chest
Tekijät: HJ Vos, M Strachinaru, BM van Dalen, I Heinonen, J Bercoff, JG Bosch, DJ Duncker, AFW van der Steen, N de Jong
Konferenssin vakiintunut nimi: IEEE International Ultrasonics Symposium
Julkaisuvuosi: 2016
Kokoomateoksen nimi: 2016 IEEE International Ultrasonics Symposium Proceedings
Tietokannassa oleva lehden nimi: 2016 IEEE INTERNATIONAL ULTRASONICS SYMPOSIUM (IUS)
Lehden akronyymi: IEEE INT ULTRA SYM
Sivujen määrä: 4
ISBN: 978-1-4673-9897-8
ISSN: 1948-5719
Verkko-osoite: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7728764
Tiivistelmä
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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